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International Space Station (ISS) => ISS Section => Topic started by: Danderman on 10/04/2010 04:23 pm

Title: Node Module - Russian segment
Post by: Danderman on 10/04/2010 04:23 pm
Although the cartoons shown by the Russians of the Node module indicate that its going to be a simple copy of the nodes currently at the Russian segment on Zarya and Zvesda, I believe that this is what the real Node module would look like:

http://img838.imageshack.us/img838/4597/shlots.jpg (http://img838.imageshack.us/img838/4597/shlots.jpg)

The Node module would likely be launched by a Soyuz-2, and thus have a capacity for about 5 tons of mass, after the PAO-Service Module is accounted for. The cartoons show a small node with a mass of no more than 2 tons, but this version would have a mass of about 5 tons. The source for the image is the Orbital Technologies Commercial Space Platform, but I believe that they are simply "borrowing" the design for the ISS Node Module.
Title: Re: Node Module - Russian segment
Post by: Space Pete on 10/04/2010 05:54 pm
This particular node doesn't appear to have any extra docking ports (which is the reason for adding the node). It only appears to have EVA hatches. So, unless Roscosmos plan to replace the hatches with docking ports, there would be no purpose in adding this particular node to the ISS, as the Russian Segment already has an airlock (MRM-2).
Title: Re: Node Module - Russian segment
Post by: Danderman on 10/04/2010 06:19 pm
This particular node doesn't appear to have any extra docking ports (which is the reason for adding the node). It only appears to have EVA hatches. So, unless Roscosmos plan to replace the hatches with docking ports, there would be no purpose in adding this particular node to the ISS, as the Russian Segment already has an airlock (MRM-2).

Nyet problema, there are 2 female docking ports on the node, which would support the two Solar Modules.
Title: Re: Node Module - Russian segment
Post by: PeterAlt on 10/19/2010 05:23 pm
Another thing I have not seen anyone mention on here is that a Russian Node module may have another use (besides hosting the the two power platforms and laboratory modules): Chinese inclusion as a full-fledged ISS partner. If you look at the currently planned Chinese space station, you'd see that it consists of two large modules connected by a six-sided node module at it's core. This Chinese node module looks very much like the planned Russian node module. Maybe this is not coincidental, as the Chinese may plan to negotiate for the Russian node module's two unused ports for use in attaching the two large Chinese modules (planned for the future independent Chinese space station) to. Or could they add their node to the aft port of the Russian node module? With Bolden visiting China now and warm remarks by all of the ISS partners regarding Chinese participation and the recent life extention of ISS to at least 2020, Chinese participation beginning around 2015 is not at all impossible.
Title: Re: Node Module - Russian segment
Post by: Danderman on 10/20/2010 06:17 am
The only available ports for the Node module will be the two lateral ports, and they are reserved for the new solar power modules.
Title: Re: Node Module - Russian segment
Post by: paycom on 10/20/2010 10:35 am
This "node module" seems to be he core module for the commercial space station planned by orbitaltechnologies (http://orbitaltechnologies.ru/).
The images on this page (http://www.parabolicarc.com/2010/09/29/russians-launch-commercial-space-station/) picture the same module.
Title: Re: Node Module - Russian segment
Post by: Danderman on 10/20/2010 03:49 pm
This "node module" seems to be he core module for the commercial space station planned by orbitaltechnologies (http://orbitaltechnologies.ru/).
The images on this page (http://www.parabolicarc.com/2010/09/29/russians-launch-commercial-space-station/) picture the same module.

Yep, that's what the very first message in this thread says.

 ::)

Title: Re: Node Module - Russian segment
Post by: Danderman on 12/17/2010 03:20 pm
I should mention this tidbit from russianspaceweb.com:

"The zenith (upward facing) docking port of the Node Module will likely be equipped with the so-called active hybrid docking port, which enables docking with a MLM module. Remaining five ports would be passive hybrids, enabling docking of Soyuz and Progress vehicles, as well as heavier modules and future spacecraft with modified docking systems. "

This implies that MLM will be launched with a nadir hybrid docking port, which will preclude vehicles like Progress and Soyuz from docking with this port, unless modified. Docking of MLM to ISS with a nadir hybrid docking port would then reduce Russian segment docking ports (available to Soyuz or Progress) from 4 to 3, ending 6 person occupancy of ISS, without something different happening.

Title: Re: Node Module - Russian segment
Post by: Space Pete on 12/17/2010 03:46 pm
I should mention this tidbit from russianspaceweb.com:

"The zenith (upward facing) docking port of the Node Module will likely be equipped with the so-called active hybrid docking port, which enables docking with a MLM module. Remaining five ports would be passive hybrids, enabling docking of Soyuz and Progress vehicles, as well as heavier modules and future spacecraft with modified docking systems. "

This implies that MLM will be launched with a nadir hybrid docking port, which will preclude vehicles like Progress and Soyuz from docking with this port, unless modified. Docking of MLM to ISS with a nadir hybrid docking port would then reduce Russian segment docking ports (available to Soyuz or Progress) from 4 to 3, ending 6 person occupancy of ISS, without something different happening.

Yes, exactly.

If MLM were to have a Nadir Hybrid port, then no Soyuzes or Progresses would be able to dock there.

This would also be the case with the Node Module (the Nadir port of the Node would have to be a standard drogue in order to facilitate Soyuz/Progress dockings).
Title: Re: Node Module - Russian segment
Post by: arkaska on 12/17/2010 04:08 pm
Maybe they plan to keep Pirs? It has a hybrid, right?
Title: Re: Node Module - Russian segment
Post by: Space Pete on 12/17/2010 04:57 pm
Maybe they plan to keep Pirs? It has a hybrid, right?

Yes, it has a Hybrid on Zenith.

However, its Nadir is a passive Drogue - so that end would not be able to berth to ISS without occupying a Soyuz/Progress port.
Title: Re: Node Module - Russian segment
Post by: arkaska on 12/18/2010 01:03 am
Yes, it has a Hybrid on Zenith.

However, its Nadir is a passive Drogue - so that end would not be able to berth to ISS without occupying a Soyuz/Progress port.

Maybe I've should have been clearer. I meant put Pirs on MLM Nadir to keep it as a docking port for Soyuz/Progress.

I'm sure they are not planning to go down to 3 docking ports on the RS and go down to a 3 person crew.
Title: Re: Node Module - Russian segment
Post by: Danderman on 12/18/2010 06:07 am
Maybe I've should have been clearer. I meant put Pirs on MLM Nadir to keep it as a docking port for Soyuz/Progress.

I'm sure they are not planning to go down to 3 docking ports on the RS and go down to a 3 person crew.

Since MLM would occupy the same docking port as Pirs (Zvezda nadir), it would be tough to maintain the two different vehicles at the same time. To dock MLM to ISS, Pirs cannot remain at Zvezda nadir.

IF MLM truly has a female hybrid adapter at its nadir port, it might be possible to remove Pirs from ISS via a Progress, station-keep while MLM docks at ISS, and then re-dock Pirs to MLM nadir, thus maintaining a cone docking adapter at Pirs nadir. I am using the word "possible" loosely, here though.  I can think of a bunch of technical issues that would arise from such an exercise.


Title: Re: Node Module - Russian segment
Post by: arkaska on 12/18/2010 02:15 pm
I understand the problem with keeping Pirs but do we really think they will go down to 3 RS docking ports? At the same time they probably wants a hybrid for the Node Module since it has a bigger diameter.

What is most likely, that MLM will actually have a hybrid or drogue?
Title: Re: Node Module - Russian segment
Post by: Danderman on 12/18/2010 02:32 pm
I understand the problem with keeping Pirs but do we really think they will go down to 3 RS docking ports? At the same time they probably wants a hybrid for the Node Module since it has a bigger diameter.

What is most likely, that MLM will actually have a hybrid or drogue?

Since MLM is actually FGB-2, and FGB-2's forward (nadir) docking port was/is 1100 mm in diameter, I suspect that today the plan is to equip the MLM nadir port with hybrid.  It would be possible for the 2012-2013 period to launch a couple of Progress to that port, equipped with hybrid docking systems, in the worst case. Hopefully, the Node module would launch on time to provide a standard nadir probe and cone port soon afterwards.

Title: Re: Node Module - Russian segment
Post by: anik on 12/18/2010 02:53 pm
Multipurpose laboratory module will have the nadir passive combined docking unit (система стыковки пассивная комбинированная ССП-К).

Node module will have the zenith active hybrid transformed docking unit (система стыковки активная гибридная трансформируемая ССА-ГТ), nadir passive combined docking unit and four lateral passive hybrid docking units (система стыковки пассивная гибридная ССПГ).
Title: Re: Node Module - Russian segment
Post by: Danderman on 12/18/2010 03:33 pm
Multipurpose laboratory module will have the nadir passive combined docking unit (система стыковки пассивная комбинированная ССП-К).

Node module will have the zenith active hybrid transformed docking unit (система стыковки активная гибридная трансформируемая ССА-ГТ), nadir passive combined docking unit and four lateral passive hybrid docking units (система стыковки пассивная гибридная ССПГ).

So, how does the MLM nadir passive combined docking unit connect to the Node module's zenith active hybrid transformed docking unit?

Title: Re: Node Module - Russian segment
Post by: Space Pete on 12/18/2010 04:08 pm
Multipurpose laboratory module will have the nadir passive combined docking unit (система стыковки пассивная комбинированная ССП-К).

Node module will have the zenith active hybrid transformed docking unit (система стыковки активная гибридная трансформируемая ССА-ГТ), nadir passive combined docking unit and four lateral passive hybrid docking units (система стыковки пассивная гибридная ССПГ).

So, basically, MLM Nadir and Node Nadir will be able to take Soyuzes & Progresses, and Hybrid vehicles.
Title: Re: Node Module - Russian segment
Post by: Danderman on 12/18/2010 07:12 pm
Multipurpose laboratory module will have the nadir passive combined docking unit (система стыковки пассивная комбинированная ССП-К).

Node module will have the zenith active hybrid transformed docking unit (система стыковки активная гибридная трансформируемая ССА-ГТ), nadir passive combined docking unit and four lateral passive hybrid docking units (система стыковки пассивная гибридная ССПГ).

So, basically, MLM Nadir and Node Nadir will be able to take Soyuzes & Progresses, and Hybrid vehicles.

Well, we are left with conflicting reports about docking ports. To be clear, if the above reports are true, MLM and the Node module cannot connect, so something is wrong.
Title: Re: Node Module - Russian segment
Post by: Space Pete on 12/18/2010 07:24 pm
Multipurpose laboratory module will have the nadir passive combined docking unit (система стыковки пассивная комбинированная ССП-К).

Node module will have the zenith active hybrid transformed docking unit (система стыковки активная гибридная трансформируемая ССА-ГТ), nadir passive combined docking unit and four lateral passive hybrid docking units (система стыковки пассивная гибридная ССПГ).

So, basically, MLM Nadir and Node Nadir will be able to take Soyuzes & Progresses, and Hybrid vehicles.

Well, we are left with conflicting reports about docking ports. To be clear, if the above reports are true, MLM and the Node module cannot connect, so something is wrong.

How so? Anik's post suggests that MLM Nadir will be a passive system capable of accepting Active Probe & Active Hybrid systems.

His post also suggests that Node Zenith will have some kind of Active Hybrid system.

That makes a linkup possible.
Title: Re: Node Module - Russian segment
Post by: Danderman on 12/18/2010 11:46 pm
How so? Anik's post suggests that MLM Nadir will be a passive system capable of accepting Active Probe & Active Hybrid systems.

His post also suggests that Node Zenith will have some kind of Active Hybrid system.

That makes a linkup possible.

Either its a garbled story, or someone in Russia is invoking magic to allow standard and hybrid systems to dock together. They are not physically compatible.     ??? ??? ??? ???

Title: Re: Node Module - Russian segment
Post by: anik on 12/19/2010 08:38 am
So, how does the MLM nadir passive combined docking unit connect to the Node module's zenith active hybrid transformed docking unit?

This question should be asked to RSC Energia. I read this info in their internal documents.
Title: Re: Node Module - Russian segment
Post by: Danderman on 12/27/2010 11:57 pm
Anuk has the Node Module using a Progress M bus to reach ISS:

TBD – Progress M-UM (No. 303) – Soyuz-2-1B – Baikonur

I wonder if the Argon 16 computer will really be used for this mission, or will this really be a Progress MM bus?
Title: Re: Node Module - Russian segment
Post by: anik on 12/28/2010 07:31 am
I wonder if the Argon 16 computer will really be used for this mission, or will this really be a Progress MM bus?

There will be TsVM-101.
Title: Re: Node Module - Russian segment
Post by: Jason Davies on 12/28/2010 07:10 pm
Some superb presentations on this module on the L2 Russian section now. Very impressive new section.
Title: Re: Node Module - Russian segment
Post by: Space Pete on 12/28/2010 07:37 pm
Some superb presentations on this module on the L2 Russian section now. Very impressive new section.

I concur! We have some fantastic L2 Russian content now, a lot of it related to ISS. And, there's loads more to come!
Title: Re: Node Module - Russian segment
Post by: Danderman on 12/30/2010 02:39 pm
I wonder if the Argon 16 computer will really be used for this mission, or will this really be a Progress MM bus?

There will be TsVM-101.

In other words, its not a Progress-M bus, but a Progress MM.  :-\
Title: Re: Node Module - Russian segment
Post by: PeterAlt on 12/30/2010 05:34 pm
I'm still unclear about...

1. Will the MLM nadir host Progress/Soyuz?
2. Will the Node Module host Progress/Soyuz?
3. If yes to #2, of the 5 available ports on the Node Module, how many wot them will be able to host Progress/Soyus?

And unrelated:

4. Are the two science and power modules still planned?

Title: Re: Node Module - Russian segment
Post by: Space Pete on 12/30/2010 05:47 pm
I'm still unclear about...

1. Will the MLM nadir host Progress/Soyuz?
2. Will the Node Module host Progress/Soyuz?
3. If yes to #2, of the 5 available ports on the Node Module, how many wot them will be able to host Progress/Soyus?

And unrelated:

4. Are the two science and power modules still planned?

1. Yes, MLM Nadir will, as it will be a "Transformed Hybrid" port, capable of accepting both standard & Hybrid probes.

2. Yes, the Nadir port will, for the same reason as above.

3. One (Node Nadir). The other five ports will be Hybrid only.

4. Yes, they are.
Title: Re: Node Module - Russian segment
Post by: Lars_J on 12/30/2010 06:46 pm
How would a "Transformed Hybrid" port work? ??? Do the standard and hybrid ports not have different diameters?
Title: Re: Node Module - Russian segment
Post by: PeterAlt on 12/30/2010 09:02 pm
Thank you for the answers!

I forgot to ask:

Considering how the Russians do not like to throw away any component that still functions, are there any possible configuration options that could allow them to keep Pirs indefinitely? (instead of disposing it before MLM or Node Module arrives.) I think I remember seeing a Russian graphics a year or so ago that showed Pirs docked to the Nadir port of the Node Module, but I can't remember where I saw this illustration and my recent efforts to find it again have failed.
Title: Re: Node Module - Russian segment
Post by: Space Pete on 12/30/2010 09:29 pm
How would a "Transformed Hybrid" port work? ??? Do the standard and hybrid ports not have different diameters?

As far as I can tell, they would simply put an APAS docking collar around the outer edge of the standard Probe & Drogue docking collar.

Obviously, this would mean that the hatchway wouldn't be as wide as the standard Hybrid system hatchway.

Attached is a graphic produced by me.
Title: Re: Node Module - Russian segment
Post by: Danderman on 12/31/2010 03:43 am
Thank you for the answers!

I forgot to ask:

Considering how the Russians do not like to throw away any component that still functions, are there any possible configuration options that could allow them to keep Pirs indefinitely? (instead of disposing it before MLM or Node Module arrives.) I think I remember seeing a Russian graphics a year or so ago that showed Pirs docked to the Nadir port of the Node Module, but I can't remember where I saw this illustration and my recent efforts to find it again have failed.

Funny you should ask that question:

http://forum.nasaspaceflight.com/index.php?topic=18939.msg676462#msg676462 (http://forum.nasaspaceflight.com/index.php?topic=18939.msg676462#msg676462)
Title: Re: Node Module - Russian segment
Post by: Space Pete on 01/16/2011 08:11 pm
RSC-Energia Approves Draft Design New ISS Module.

Draft design of a new docking compartment for the International Space Station has been approved by Rocket Space Corporation Energia’s Scientific Board.
The module for the ISS Russian segment is intended to provide attachment of the two scientific power modules, as well as additional docking ports for Soyuzes and Progresses. The module is to be attached to Multi-Purpose Module; both are expected to arrive at the ISS in 2012.
The docking compartment weights 4 t, with internal volume of 14 cub m.
RSC-E Board chaired by First Deputy General Designer Victor Legostayev also approved draft design of  module vehicle Progress M-UM to be used to deliver the docking compartment to the station, Progress M-UM upper composite, and Soyuz modification to respect Progress M-UM mission.

Roscosmos PAO.

www.roscosmos.ru/main.php?id=2&nid=11191&lang=en
Title: Re: Node Module - Russian segment
Post by: cd-slam on 01/17/2011 01:46 am
The module is to be attached to Multi-Purpose Module; both are expected to arrive at the ISS in 2012.
Wow, really? The Russian launch schedule shows the Node module launch in 2013.
Title: Re: Node Module - Russian segment
Post by: Space Pete on 01/17/2011 11:33 am
A meeting of the Corporation's Scientific and Technical Council was held at S.P. Korolev Rocket and Space Corporation Energia to review conceptual designs of:

• Node Module (NM) of the Russian Segment (RS) of the International
  Space Station (ISS),
• cargo transportation spacecraft/module Progress M-NM to deliver NM
  to ISS,
• payload unit containing spacecraft/module Progress M-NM,
• adaptation of Soyuz launch vehicle for spacecraft/module Progress
   M-NM.

Presiding at the meeting was a first deputy general designer of RSC Energia, Chairman of the Scientific and Technical Council, a member of the Russian Academy of Sciences V.P. Legostaev.

Taking part in the Scientific and Technical Council were the Corporation President and General Designer V.A. Lopota and First Vice President of the Corporation and first deputy general designer N.I. Zelenshchikov.

Having heard reports and statements from RSC Energia project managers and heads of scientific and technical centers, representatives of the RSC Energia Experimental Machine-building Plant, Central Research Institute for Machine-building (TsNIIMash) and other participants in the conceptual design efforts, and having reviewed and discussed these results, the Scinetific and Technical Council has decided to approve presented materials.

For reference:

NM is being developed by RSC Energia in order to support the docking to ISS RS of two scientific and power modules during the final stage of the segment assembly and to provide on this segment additional docking ports to receive Soyuz TMA and Progress M spacecraft.

The module can be docked with the Multipurpose Laboratory Module (MLM) developed by RSC Energia in cooperation with leading companies in the industry. NM and MLM are to be incorporated into ISS in 2012.

NM mass is 4 tons, the pressurized cabin volume is 14 cubic meters.


www.energia.ru/en/news/news-2011/news_01-13.html
Title: Re: Node Module - Russian segment
Post by: PeterAlt on 01/17/2011 11:47 am
So, there will be additional Soyuz/Progress ports. The release says "two additional". I wonder if this means two additional in addition to the nadir port that it "gives back" (after "taking" MPL's nadir) making 3 docking ports available in total?
Title: Re: Node Module - Russian segment
Post by: Space Pete on 01/17/2011 01:48 pm
Here's a summary of MLM & NM docking ports:

MLM Zenith: Active Hybrid.
MLM Nadir: Passive Transformed Hybrid (able to support Active Hybrid & Active Standard Probe spacecraft).

NM Zenith: Active Hybrid.
NM Radial Ports (4): Passive Hybrid.
NM Nadir: Passive Transformed Hybrid.

This means that the NM will only be able to support one Soyuz/Progress.
Title: Re: Node Module - Russian segment
Post by: PeterAlt on 01/18/2011 07:26 am
So why does the PR specifically say "two additional Soyuz/Progress"? Either they are wrong, there's an error in translation, the design had been upgraded and your info is based on an older design, or additional ports may be upgraded to support additional Soyuz/Progress.
Title: Re: Node Module - Russian segment
Post by: Danderman on 01/19/2011 04:19 am
So why does the PR specifically say "two additional Soyuz/Progress"? Either they are wrong, there's an error in translation, the design had been upgraded and your info is based on an older design, or additional ports may be upgraded to support additional Soyuz/Progress.

The original Russian is kind of ambiguous on the additional ports, I wouldn't read much into it.

Title: Re: Node Module - Russian segment
Post by: PeterAlt on 01/27/2011 11:39 pm
Just found the following graphic showing the RS configuration plans:

http://www.flightglobal.com/blogs/hyperbola/russian%20segment.JPG

Notice it shows one Progress and a Soyuz docked to the Node Module.
Title: Re: Node Module - Russian segment
Post by: PeterAlt on 02/02/2011 09:13 am
Also note that graphic I posted in my previous post shows the Docking Compartment-1 (Pirs) attached to the aft port of the SM. Maybe the Russians plan on recertifying and keeping Pirs (if the module is still in good working condition).
Title: Re: Node Module - Russian segment
Post by: Chandonn on 02/02/2011 09:38 am
Also note that graphic I posted in my previous post shows the Docking Compartment-1 (Pirs) attached to the aft port of the SM. Maybe the Russians plan on recertifying and keeping Pirs (if the module is still in good working condition).

I'm pretty sure that's the experiment airlock (currently attached to MRM-1 and not yet assembled), and NOT Pirs.
Title: Re: Node Module - Russian segment
Post by: PeterAlt on 02/02/2011 09:55 am
Looking closer at that graphic, it looks like they labeled the SM as DC, so this is not Pirs, but the airlock you mentioned is clearly seen attached to the MLM. I wonder if they made a mistake by showing two Russian VV attached to the Node Module, or if this was the plan originally, or if this could still be in the plans somehow by upgrading either the docking ports on the Node Module or upgrading the docking system on Soyuz/Progress?
Title: Re: Node Module - Russian segment
Post by: Danderman on 06/30/2011 04:45 pm
An image of the Node Module transported by the Progress-M tug. Note that this variant drops the cylindrical unit attached to the front of the Node that was seen on the Commercial Space Station.

From the 2010 Energia Annual Report.
Title: Re: Node Module - Russian segment
Post by: Jason1701 on 06/30/2011 05:24 pm
What's the status of when/if this launches?
Title: Re: Node Module - Russian segment
Post by: Stan Black on 06/30/2011 05:35 pm
An image of the Node Module transported by the Progress-M tug. Note that this variant drops the cylindrical unit attached to the front of the Node that was seen on the Commercial Space Station.

From the 2010 Energia Annual Report.


Not only is it ugly… but the side thruster clusters have been moved…
Title: Re: Node Module - Russian segment
Post by: Danderman on 06/30/2011 05:40 pm
An image of the Node Module transported by the Progress-M tug. Note that this variant drops the cylindrical unit attached to the front of the Node that was seen on the Commercial Space Station.

From the 2010 Energia Annual Report.


Not only is it ugly… but the side thruster clusters have been moved…

AFAIK, there never have been side thruster clusters on the Node Module, these are electrical hydraulic refueling valves, similar to the units on Pirs.
Title: Re: Node Module - Russian segment
Post by: Stan Black on 06/30/2011 05:41 pm
An image of the Node Module transported by the Progress-M tug. Note that this variant drops the cylindrical unit attached to the front of the Node that was seen on the Commercial Space Station.

From the 2010 Energia Annual Report.


Not only is it ugly… but the side thruster clusters have been moved…

AFAIK, there never have been side thruster clusters on the Node Module, these are electrical hydraulic refueling valves, similar to the units on Pirs.

On the service module, some fire forwards
Title: Re: Node Module - Russian segment
Post by: Space Pete on 06/30/2011 05:44 pm
What's the status of when/if this launches?

It has been formally approved and will launch in 2012 (likely to be 2013 now).

http://forum.nasaspaceflight.com/index.php?topic=22914.msg680992#msg680992
Title: Re: Node Module - Russian segment
Post by: Danderman on 06/30/2011 05:44 pm
An image of the Node Module transported by the Progress-M tug. Note that this variant drops the cylindrical unit attached to the front of the Node that was seen on the Commercial Space Station.

From the 2010 Energia Annual Report.


Not only is it ugly… but the side thruster clusters have been moved…

AFAIK, there never have been side thruster clusters on the Node Module, these are electrical hydraulic refueling valves, similar to the units on Pirs.

On the service module, some fire forwards

If you are referring to the mid thrusters on the Progress-M tug, there is no way that those have been moved or changed; that would be a really, really big deal if it happened. The location and position of those thrusters create constraints that are reflected in the design of the Node Module itself.
Title: Re: Node Module - Russian segment
Post by: Danderman on 06/30/2011 05:47 pm
What's the status of when/if this launches?

It has been formally approved and will launch in 2012 (likely to be 2013 now).

http://forum.nasaspaceflight.com/index.php?topic=22914.msg680992#msg680992

Well, not according to the link, which specifies that the Node Module design has been approved within Energia, but is silent on the issue of Roskosmos approval.

The 2010 Energia report is also silent on the issue of either a launch date or Roskosmos approval.
Title: Re: Node Module - Russian segment
Post by: Stan Black on 06/30/2011 05:59 pm
An image of the Node Module transported by the Progress-M tug. Note that this variant drops the cylindrical unit attached to the front of the Node that was seen on the Commercial Space Station.

From the 2010 Energia Annual Report.


Not only is it ugly… but the side thruster clusters have been moved…

AFAIK, there never have been side thruster clusters on the Node Module, these are electrical hydraulic refueling valves, similar to the units on Pirs.

On the service module, some fire forwards

If you are referring to the mid thrusters on the Progress-M tug, there is no way that those have been moved or changed; that would be a really, really big deal if it happened. The location and position of those thrusters create constraints that are reflected in the design of the Node Module itself.


They are sticking out
Title: Re: Node Module - Russian segment
Post by: Danderman on 06/30/2011 07:16 pm
They are sticking out

I am sure that the weird looking thrusters in the drawing are just an artifact. The engineering drawings show standard Progress M thrusters.
Title: Re: Node Module - Russian segment
Post by: Stan Black on 06/30/2011 07:27 pm
They are sticking out

I am sure that the weird looking thrusters in the drawing are just an artifact. The engineering drawings show standard Progress M thrusters.


 But what about the forward facing thrusters?
Title: Re: Node Module - Russian segment
Post by: Danderman on 06/30/2011 08:13 pm
From Energia's engineering drawing of the Commercial Space Station, you can see that the Progress thrusters are normal.
Title: Re: Node Module - Russian segment
Post by: paycom on 07/05/2011 03:47 pm
Orbitaltechnologies has a lot of internal views of their space station online:
http://orbitaltechnologies.ru/en/images-of-the-commercial-space-station.html
Don't think they are "borrowing" all this from the node module for ISS...
Title: Re: Node Module - Russian segment
Post by: baldusi on 07/05/2011 06:03 pm
I don't read Russian, so may be someone can answer. But I've read that Roscosmos is planning to replace all their current Soyuz with Soyuz-2.1a/b by 2014 (I guess that's at the factory side, probably 2016 at the launch site). Is there any mention of the custom Progress LV? It would be a good step to see what it takes to adapt current Progress and Soyuz capsules to the new LV.
Title: Re: Node Module - Russian segment
Post by: Danderman on 07/05/2011 08:10 pm
Orbitaltechnologies has a lot of internal views of their space station online:
http://orbitaltechnologies.ru/en/images-of-the-commercial-space-station.html
Don't think they are "borrowing" all this from the node module for ISS...

The structure is definitely the same, the internal layout for the Commercial Space Station is their own fantasy.
Title: Re: Node Module - Russian segment
Post by: Danderman on 07/05/2011 08:13 pm
I don't read Russian, so may be someone can answer. But I've read that Roscosmos is planning to replace all their current Soyuz with Soyuz-2.1a/b by 2014 (I guess that's at the factory side, probably 2016 at the launch site). Is there any mention of the custom Progress LV? It would be a good step to see what it takes to adapt current Progress and Soyuz capsules to the new LV.

Where did you read that rather amazing news?
Title: Re: Node Module - Russian segment
Post by: baldusi on 07/05/2011 08:58 pm
I don't read Russian, so may be someone can answer. But I've read that Roscosmos is planning to replace all their current Soyuz with Soyuz-2.1a/b by 2014 (I guess that's at the factory side, probably 2016 at the launch site). Is there any mention of the custom Progress LV? It would be a good step to see what it takes to adapt current Progress and Soyuz capsules to the new LV.

Where did you read that rather amazing news?

At Anatoly Zak's site (http://www.russianspaceweb.com/soyuz2_lv.html#operational). They "only" have the Soyuz-U and Soyuz-FG to replace, since the 2.1a/b has already replaced the Molnyia-M from Plesk. And they are producing it for them and Arianespace. So, at least five to six per year as of now. It wouldn't be too difficult to see them replacing the rest to consolidate the factory lines.
Title: Re: Node Module - Russian segment
Post by: PeterAlt on 07/10/2011 03:19 am
Is this supposed to launch with a modified Progress as its tug? If so, what is the designated Progress flight number? Thanks
Title: Re: Node Module - Russian segment
Post by: PeterAlt on 07/10/2011 03:28 am
I forgot to ask, why are we so sure that the CSS module is based on the Node Module? Besides the obvious that they look similar and both have the same manufacture, has there been any official statements saying that this is so. I ask because I see similarities but some key differences, such as the extended length of the CSS module, compared to the Node Module.
Title: Re: Node Module - Russian segment
Post by: Danderman on 07/11/2011 01:12 am
I forgot to ask, why are we so sure that the CSS module is based on the Node Module? Besides the obvious that they look similar and both have the same manufacture, has there been any official statements saying that this is so. I ask because I see similarities but some key differences, such as the extended length of the CSS module, compared to the Node Module.

No official statements yet, sorry.

My suspicion is that the Russian company promoting the Commercial Space Station simply used the Energia design with some minor modifications, and then generated some computer graphics of an enhanced interior, in the hopes of attracting some investment. There has been little activity on their web site since the initial splash, so perhaps raising money has been more difficult than they originally imagined.
Title: Re: Node Module - Russian segment
Post by: hop on 07/11/2011 03:09 am
I forgot to ask, why are we so sure that the CSS module is based on the Node Module? Besides the obvious that they look similar and both have the same manufacture, has there been any official statements saying that this is so.
We don't have any official statement, but I would say that if the CSS has any chance of being real, it is going to be closely related to something that someone else is paying for. The node modules is the most obvious choice.

I would suggest not reading too much into CG promotional materials.
Title: Re: Node Module - Russian segment
Post by: PeterAlt on 07/11/2011 05:31 am
So, it might be possible that the CSS is not entirely a clone of the NM, but may be loosely based on its design. If so, it is not reliable to look at the CSS designs and assume that the same is applicable to the NM.
Title: Re: Node Module - Russian segment
Post by: PeterAlt on 07/11/2011 05:39 am
One more thing, isn't it interesting that on the CSS web page, they mention that its orbit would be near the ISS orbit and that the docking system will be compatible with Russian, American, and Chinese space craft. If they're successful, this would be a good reason for China to put their station within the vicinity of CSS. I always imagined the ISS evolving into a space city of sorts, with interconnecting modules, but the "city" to evolve may actually be multiple free flying stations operating nearby.
Title: Re: Node Module - Russian segment
Post by: Ronsmytheiii on 07/11/2011 06:51 pm
One more thing, isn't it interesting that on the CSS web page, they mention that its orbit would be near the ISS orbit and that the docking system will be compatible with Russian, American, and Chinese space craft. If they're successful, this would be a good reason for China to put their station within the vicinity of CSS. I always imagined the ISS evolving into a space city of sorts, with interconnecting modules, but the "city" to evolve may actually be multiple free flying stations operating nearby.

The Russians sold the Chinese the APAS-95, the same system that the Russians sold us for the orbiters so it is not that surprising. With the iLIDS/NDS system the US and Europe are moving away from APAS, so would not read into the statement too much.
Title: Re: Node Module - Russian segment
Post by: Danderman on 07/11/2011 07:22 pm
So, it might be possible that the CSS is not entirely a clone of the NM, but may be loosely based on its design. If so, it is not reliable to look at the CSS designs and assume that the same is applicable to the NM.

The structure of the CSS is clearly exactly like the Node module plus a small 2.2 meter diameter section (which may be the remainder of the SPP hull, after Rassvet was carved out). The differences are in the hatches and docking ports. Its possible that the CSS is the Node module structural test article.
Title: Re: Node Module - Russian segment
Post by: Space Pete on 07/11/2011 07:28 pm
With the iLIDS/NDS system the US and Europe are moving away from APAS

Well, iLIDS/IDSS (of which NDS is NASA's implementation) will still use the APAS docking collar, but with a LIDS capture ring - so foreign partners wouldn't have to adapt their docking systems too much in order to be ISS-compatible.
Title: Re: Node Module - Russian segment
Post by: anik on 07/14/2011 07:14 am
Is this supposed to launch with a modified Progress as its tug? If so, what is the designated Progress flight number?

Progress M-UM cargo ship-module (factory number 303).
Title: Re: Node Module - Russian segment
Post by: Danderman on 10/08/2011 06:44 pm
I did a screen grab from the NK forum that shows an updated image of the Node Module. Among the differences from earlier versions of the Node module, as well as Pirs/Posk:

1) The adapter between the PAO (service module) is modified, and is no longer a frustrum.

2) The Kurs long range antennas are heavily modified.

3) The television camera has been relocated to the front hemisphere. This will require retraining of the crew for TORU operations.

4) A grapple fixture has been added to the Node module, presumably for the ERA.

5) The short range Kurs antennas have been replaced by something new. I could speculate that this is Kurs-MM, which implies that MLM will also support Kurs-MM (ie have a Kurs-MM Passive box). This is big news, if true.

Title: Re: Node Module - Russian segment
Post by: Danderman on 10/11/2011 05:11 am
Someone over on the NK forum suggested that the new antennas on the Node module are actually Kurs-N ("new Kurs"), not Kurs-MM. I will have to disagree.

Kurs-N is what NIITP calls "new old Kurs", it is compatible with the current Kurs system (centimeter Kurs), but the electronics are modernized. This means that the antennas remain the same, as does the frequency (S-band).  This allows New Kurs to integrate seamlessly with ISS, with the advantage of lighter boxes and less power consumption.  However, the New Kurs is not more accurate than the current Kurs system.

Kurs-MM is not compatible with the current Kurs system; the frequency is in the millimeter band, and therefore the antennas are different. The antennas on the drawing above appear to be similar to Kurs-MM antennas, but different from the current Kurs antennas.  Kurs-MM boxes are also lighter than the current Kurs, draw less power, but more importantly, Kurs-MM is 10 times more accurate than the current Kurs system.

Title: Re: Node Module - Russian segment
Post by: Prober on 10/11/2011 10:04 pm
Someone over on the NK forum suggested that the new antennas on the Node module are actually Kurs-N ("new Kurs"), not Kurs-MM. I will have to disagree.


Kurs-MM is not compatible with the current Kurs system; the frequency is in the millimeter band, and therefore the antennas are different. The antennas on the drawing above appear to be similar to Kurs-MM antennas, but different from the current Kurs antennas.  Kurs-MM boxes are also lighter than the current Kurs, draw less power, but more importantly, Kurs-MM is 10 times more accurate than the current Kurs system.



So we are still using refurbished Kurs systems?

Title: Re: Node Module - Russian segment
Post by: Danderman on 10/11/2011 10:09 pm
Someone over on the NK forum suggested that the new antennas on the Node module are actually Kurs-N ("new Kurs"), not Kurs-MM. I will have to disagree.


Kurs-MM is not compatible with the current Kurs system; the frequency is in the millimeter band, and therefore the antennas are different. The antennas on the drawing above appear to be similar to Kurs-MM antennas, but different from the current Kurs antennas.  Kurs-MM boxes are also lighter than the current Kurs, draw less power, but more importantly, Kurs-MM is 10 times more accurate than the current Kurs system.



So we are still using refurbished Kurs systems?



Yep. Every Shuttle was coming down with as many Kurs boxes as could be accommodated.

Note that it takes about 18 month to refurbish a Kurs box, so we will see the last of those boxes in 2012. I don't know if the used boxes since STS-135 are being stockpiled somewhere in ISS, awaiting Dragon.
Title: Re: Node Module - Russian segment
Post by: Danderman on 10/13/2011 02:55 am
... and now the NK forum has this drawing of the Node module showing Kurs antennas that are compatible with the current ISS Kurs, as opposed to Kurs-MM antennas on the previous drawing.

 ??? ???

Title: Re: Node Module - Russian segment
Post by: Danderman on 02/06/2012 03:03 pm
Does this slip also push back the Node Module? If so, what's the new estimated launch date for NM?

I am not sure if the Node Module is actually funded.

Title: Re: Node Module - Russian segment
Post by: Space Pete on 02/06/2012 03:15 pm
Does this slip also push back the Node Module? If so, what's the new estimated launch date for NM?

I am not sure if the Node Module is actually funded.

It is. Current launch date: December 18, 2013.
Title: Re: Node Module - Russian segment
Post by: arkaska on 02/06/2012 04:03 pm
But that will slip if MLM is unofficially NET dec 2013
Title: Re: Node Module - Russian segment
Post by: Space Pete on 02/06/2012 04:06 pm
But that will slip if MLM is unofficially NET dec 2013

True. Officially, MLM is Summer 2013, with NM Dec 2013. Unofficially, if MLM is Dec 2013, we can expect NM in mid 2014.
Title: Re: Node Module - Russian segment
Post by: Danderman on 02/06/2012 09:40 pm
Its hard to imagine that the Node Module will fly just 6 months after MLM, as MLM exists in hardware, whereas Node is PowerPoint.
Title: Re: Node Module - Russian segment
Post by: Space Pete on 02/06/2012 10:42 pm
Its hard to imagine that the Node Module will fly just 6 months after MLM, as MLM exists in hardware, whereas Node is PowerPoint.

But the NM is also a lot smaller and less complex than the MLM.
Title: Re: Node Module - Russian segment
Post by: anik on 02/07/2012 07:13 am
Node is PowerPoint

UM is constructing at RSC Energia since 2011 and will be ready to the end of 2013, so PowerPoint is your opinion only.
Title: Re: Node Module - Russian segment
Post by: arkaska on 02/07/2012 01:05 pm
What about the other potential Russian modules?
Title: Re: Node Module - Russian segment
Post by: manboy on 02/07/2012 06:49 pm
Node is PowerPoint

UM is constructing at RSC Energia since 2011 and will be ready to the end of 2013, so PowerPoint is your opinion only.
Any pictures?

... and now the NK forum has this drawing of the Node module showing Kurs antennas that are compatible with the current ISS Kurs, as opposed to Kurs-MM antennas on the previous drawing.

 ??? ???
On a unrelated note, are those Lyappa arm attachment fixtures on the second drawing?
Title: Re: Node Module - Russian segment
Post by: Danderman on 02/08/2012 12:40 am
Node is PowerPoint

UM is constructing at RSC Energia since 2011 and will be ready to the end of 2013, so PowerPoint is your opinion only.
Any pictures?

... and now the NK forum has this drawing of the Node module showing Kurs antennas that are compatible with the current ISS Kurs, as opposed to Kurs-MM antennas on the previous drawing.

 ??? ???
On a unrelated note, are those Lyappa arm attachment fixtures on the second drawing?

It sure looks like one, but the caption says that the fixture is for a "perspective" manipulator, meaning one that will show up in the future.
Title: Re: Node Module - Russian segment
Post by: Robotbeat on 02/08/2012 12:55 am
*prospective (sorry. ;) )
Title: Re: Node Module - Russian segment
Post by: PeterAlt on 02/09/2012 11:12 pm
Does this slip also push back the Node Module? If so, what's the new estimated launch date for NM?

I am not sure if the Node Module is actually funded.

It is. Current launch date: December 18, 2013.

What's the status of the other two modules (the huge power and research modules)? Have they advanced at least to the design phase?
Title: Re: Node Module - Russian segment
Post by: Jim on 02/09/2012 11:37 pm
Does this slip also push back the Node Module? If so, what's the new estimated launch date for NM?

I am not sure if the Node Module is actually funded.

It is. Current launch date: December 18, 2013.

What's the status of the other two modules (the huge power and research modules)? Have they advanced at least to the design phase?

Power was killed long ago, as for research module, do some research on this forum.

Edit:

you posted on the thread about it, the MLM
Title: Re: Node Module - Russian segment
Post by: arkaska on 02/10/2012 12:15 am

Power was killed long ago, as for research module, do some research on this forum.

Edit:

you posted on the thread about it, the MLM

He's talking about the Science-Power Module's that are proposed and will be attached to the Node Module
Title: Re: Node Module - Russian segment
Post by: PeterAlt on 02/10/2012 12:21 am
Does this slip also push back the Node Module? If so, what's the new estimated launch date for NM?

I am not sure if the Node Module is actually funded.

It is. Current launch date: December 18, 2013.

What's the status of the other two modules (the huge power and research modules)? Have they advanced at least to the design phase?

Power was killed long ago, as for research module, do some research on this forum.

Edit:

you posted on the thread about it, the MLM

Yes, I know. I'm talking about the two modules that replaced the originals in the plan. I don't know the new names of those modules.
Title: Re: Node Module - Russian segment
Post by: PeterAlt on 02/10/2012 12:48 am
Here, from RussianSpaceweb, this is what I am talking about...

"The first task of the [node] module would be to enable the addition of a pair of science and power modules, NEMs, to the Russian segment, which were intended to replace a canceled Science and Power Platform, NEP."

The site also says that the NM is intended to be the first - and also permanent module - for a future Russian independent space station. Russia intents to begin assembling their station at the ISS, beginning with the NM, followed by the two "NEM" science and power modules.
Title: Re: Node Module - Russian segment
Post by: Jim on 02/10/2012 12:58 am
They are no more than words
Title: Re: Node Module - Russian segment
Post by: Prober on 02/10/2012 02:09 am
They are no more than words

yes, and the words are:

"The site also says that the NM is intended to be the first - and also permanent module - for a future Russian independent space station."

So I will take them at their word.
Title: Re: Node Module - Russian segment
Post by: Danderman on 02/10/2012 02:27 am
The last news I have on the UM - Node Module is that it got to PDR at Energia. I have no news that Roskosmos has funded it.

Title: Re: Node Module - Russian segment
Post by: Prober on 02/10/2012 02:39 am
The last news I have on the UM - Node Module is that it got to PDR at Energia. I have no news that Roskosmos has funded it.



kinda off topic, sorry but: speaking of funding ......wasn't an extra Soyuz funded for in the last Roskosmos budget?
Title: Re: Node Module - Russian segment
Post by: Danderman on 02/10/2012 03:06 am
The last news I have on the UM - Node Module is that it got to PDR at Energia. I have no news that Roskosmos has funded it.

kinda off topic, sorry but: speaking of funding ......wasn't an extra Soyuz funded for in the last Roskosmos budget?

AFAIK the status of the 5th Soyuz is that Roskosmos would consider it, if someone else paid for it.
Title: Re: Node Module - Russian segment
Post by: Jim on 02/10/2012 03:25 am
They are no more than words

yes, and the words are:

"The site also says that the NM is intended to be the first - and also permanent module - for a future Russian independent space station."

So I will take them at their word.


It is not an official site.
What other words are you going to take from them?  That they are going to build Kliper, that the USA disabled Fobos-Grunt, that they were going to built SPP, etc.
Title: Re: Node Module - Russian segment
Post by: Jim on 02/10/2012 03:26 am

kinda off topic, sorry but: speaking of funding ......wasn't an extra Soyuz funded for in the last Roskosmos budget?


Same place as the budget for NM.  Take their word for it.
Title: Re: Node Module - Russian segment
Post by: manboy on 02/10/2012 03:45 am
They are no more than words

yes, and the words are:

"The site also says that the NM is intended to be the first - and also permanent module - for a future Russian independent space station."

So I will take them at their word.


It is not an official site.
What other words are you going to take from them?  That they are going to build Kliper, that the USA disabled Fobos-Grunt, that they were going to built SPP, etc.
As far as I know RussianSpaceWeb has claimed none of those things and in my experience its a pretty good source for info on the Russian space program.
Title: Re: Node Module - Russian segment
Post by: anik on 02/10/2012 07:21 am
UM construction at RSC Energia (photo from Novosti kosmonavtiki forum).
Title: Re: Node Module - Russian segment
Post by: PeterAlt on 02/10/2012 12:42 pm
I would certainly appreciate some words from Anatoly Zak about the "OPSEK" (Orbitalniy Pilotiruemyi Eksperimentalniy Kompleks) plan he describes.  Development of these additional Russian modules would seem less unlikely if in fact their plan-of-record is to fly modules to ISS and then later detach them to form a separate station.

I caution against believing anything in the wikipedia article on this subject, but its list of references (http://en.wikipedia.org/wiki/Orbital_Piloted_Assembly_and_Experiment_Complex#References) might provide reasonable places to start reading.

I think it's interesting how Russia plans on assembling OPSEK at the ISS and then detaching it whenever the ISS partners decide to put the ISS out of commission, while -  on the opposite side of the station - the ISS Gateway station very possibly could be assembled at ISS for detachment and transportation to L1.

You can see from this a possible future evolution of station: growth at either side and that "growth" later becoming independent "offspring" - all happening before the ISS "parent" gets ill of old age and is put to sleep...
Title: Re: Node Module - Russian segment
Post by: Danderman on 02/10/2012 02:21 pm
UM construction at RSC Energia (photo from Novosti kosmonavtiki forum).

Yep, that photo appeared yesterday in the NK forum. 

OK, I will try again: I have no evidence that Roskosmos has funded a human Mars mission. Let's see if a photo of THAT appears in the NK forum.

Title: Re: Node Module - Russian segment
Post by: Danderman on 02/10/2012 02:25 pm

On a unrelated note, are those Lyappa arm attachment fixtures on the second drawing?

This appeared today in the NK forum, it appears to be a workstation that would be based on the Node Module attachment fixture.
Title: Re: Node Module - Russian segment
Post by: PeterAlt on 02/10/2012 02:46 pm
UM construction at RSC Energia (photo from Novosti kosmonavtiki forum).

Yep, that photo appeared yesterday in the NK forum. 

OK, I will try again: I have no evidence that Roskosmos has funded a human Mars mission. Let's see if a photo of THAT appears in the NK forum.



I take it line item funding for programs in Russia isn't openly available as public information, as it is in the US, EU, Japan, and most western nations?

I would expect a "democratized" Russia to be the exact opposite...
Title: Re: Node Module - Russian segment
Post by: Danderman on 02/10/2012 03:49 pm
UM construction at RSC Energia (photo from Novosti kosmonavtiki forum).

Yep, that photo appeared yesterday in the NK forum. 

OK, I will try again: I have no evidence that Roskosmos has funded a human Mars mission. Let's see if a photo of THAT appears in the NK forum.



I take it line item funding for programs in Russia isn't openly available as public information, as it is in the US, EU, Japan, and most western nations?

I would expect a "democratized" Russia to be the exact opposite...

Its in Russian somewhere.
Title: Re: Node Module - Russian segment
Post by: Prober on 02/10/2012 03:56 pm
UM construction at RSC Energia (photo from Novosti kosmonavtiki forum).

The design is very interesting. 
Title: Re: Node Module - Russian segment
Post by: anik on 02/10/2012 07:33 pm
OK, I will try again: I have no evidence that Roskosmos has funded a human Mars mission. Let's see if a photo of THAT appears in the NK forum

What are you trying to prove? You have asked about funding of UM module and you have gotten photo of UM construction from Novosti kosmonavtiki forum. It confirms that UM funding exists. Human Mars mission is off-topic in this thread. What do you want else?
Title: Re: Node Module - Russian segment
Post by: The-Hammer on 02/10/2012 07:48 pm
I think he's making a joke.

See Retroactive Wish - TV Tropes (http://tvtropes.org/pmwiki/pmwiki.php/Main/RetroactiveWish)

Quote
Willow: I wish Buffy was here!
Buffy: I'm here!
Willow: I wish I had a million dollars!
Title: Re: Node Module - Russian segment
Post by: Danderman on 02/11/2012 02:23 pm
OK, I will try again: I have no evidence that Roskosmos has funded a human Mars mission. Let's see if a photo of THAT appears in the NK forum

What are you trying to prove? You have asked about funding of UM module and you have gotten photo of UM construction from Novosti kosmonavtiki forum. It confirms that UM funding exists. Human Mars mission is off-topic in this thread. What do you want else?

Anik, its a joke. When I said there was no proof that Roskosmos had funded the Node module, a photo of the Node Module under construction appeared in the NK forum.

So, I said there was no proof that Roskosmos has funded a Mars mission, in the hope that a photo of construction of a Mars mission would appear in the NK forum.
Title: Re: Node Module - Russian segment
Post by: Danderman on 03/01/2012 12:34 am
More drawings from the NK forum. These compare the thruster configuration for the PAO carrying the Node Module with the standard Progress thrusters.


Title: Re: Node Module - Russian segment
Post by: Stan Black on 03/02/2012 12:55 pm
More drawings from the NK forum. These compare the thruster configuration for the PAO carrying the Node Module with the standard Progress thrusters.

So they are sticking out!
http://forum.nasaspaceflight.com/index.php?topic=22914.msg764530#msg764530
Title: Re: Node Module - Russian segment
Post by: Danderman on 03/02/2012 02:47 pm
More drawings from the NK forum. These compare the thruster configuration for the PAO carrying the Node Module with the standard Progress thrusters.

So they are sticking out!
http://forum.nasaspaceflight.com/index.php?topic=22914.msg764530#msg764530

According to this latest drawing, the lateral mid thrusters are hanging out 350 mm from the sides of the spacecraft. Since the Node Module itself is 1.1 meters wider than the standard Progress, the extra loads that far from the vehicle c/g might have forced Energia to move the lateral mid-thrusters.

It would be interesting to see if the Pirs mid-thrusters also were moved.

Title: Re: Node Module - Russian segment
Post by: Danderman on 06/09/2012 06:00 am
http://zakupki.gov.ru/forum/posts/list/9954.page

Наименование заказа: Изготовление и поставка двух ракет – носителей «Союз-2-1б» для запуска КА «Ресурс-П» № 2, УМ МКС (узловой модуль).
Номер заказа: №0173100007012000104
Заказчик: ИНН 7702361674 КПП 770201001
Роскосмос


Roskosmos is ordering a Soyuz 2-1b for the Node Module.
Title: Re: Node Module - Russian segment
Post by: PeterAlt on 06/27/2012 01:09 am
Is it safe to assume that Russian ISS funding for new developments are currently spread between completing and launching MLM and NM, and that design work on the two other planned modules will start in parallel once funds are free after completing and launching MLM and the NM? Since the two remain modules (the Scientific and Power Producing Modules 1 & 2) are identical twins, design work on one buys two. I would also imagine that it would make more economic sense to build both at the same same, rather than one at a time. Design work hasn't yet started on S&PPM1/2, or has it?
Title: Re: Node Module - Russian segment
Post by: Jim on 06/27/2012 01:24 am
nope, not safe.
Title: Re: Node Module - Russian segment
Post by: FinalFrontier on 06/27/2012 01:26 am
Is it safe to assume that Russian ISS funding for new developments are currently spread between completing and launching MLM and NM, and that design work on the two other planned modules will start in parallel once funds are free after completing and launching MLM and the NM? Since the two remain modules (the Scientific and Power Producing Modules 1 & 2) are identical twins, design work on one buys two. I would also imagine that it would make more economic sense to build both at the same same, rather than one at a time. Design work hasn't yet started on S&PPM1/2, or has it?

Uh wasn't SPP 1 and 2 axed years ago along with the rest?
Title: Re: Node Module - Russian segment
Post by: Danderman on 06/27/2012 01:32 am
Is it safe to assume that Russian ISS funding for new developments are currently spread between completing and launching MLM and NM, and that design work on the two other planned modules will start in parallel once funds are free after completing and launching MLM and the NM? Since the two remain modules (the Scientific and Power Producing Modules 1 & 2) are identical twins, design work on one buys two. I would also imagine that it would make more economic sense to build both at the same same, rather than one at a time. Design work hasn't yet started on S&PPM1/2, or has it?

Uh wasn't SPP 1 and 2 axed years ago along with the rest?

There was to be only 1 SPP, but there are supposed to be two NEPs Real Soon Now.
Title: Re: Node Module - Russian segment
Post by: PeterAlt on 06/27/2012 03:13 am
Is it safe to assume that Russian ISS funding for new developments are currently spread between completing and launching MLM and NM, and that design work on the two other planned modules will start in parallel once funds are free after completing and launching MLM and the NM? Since the two remain modules (the Scientific and Power Producing Modules 1 & 2) are identical twins, design work on one buys two. I would also imagine that it would make more economic sense to build both at the same same, rather than one at a time. Design work hasn't yet started on S&PPM1/2, or has it?

Uh wasn't SPP 1 and 2 axed years ago along with the rest?

No, the ones in the previous "RS complete" were. The Nodal Module's primary purpose is to host these, which will be required because the RS requires more power. Currently, they use US power to make up for the shortfall, under a barter arrangement that will run out in less than a few years. The US can then repurpose that power for other uses we will be needing it for. Officially, "RS complete" milestone, according to NASA is the addition of MLM, but the Russian Space Agency has a different definition of "RS complete" and that is at the addition of the second S&PPM.
Title: Re: Node Module - Russian segment
Post by: Danderman on 06/27/2012 05:25 am
The Nodal Module's primary purpose is to host these, which will be required because the RS requires more power. Currently, they use US power to make up for the shortfall, under a barter arrangement that will run out in less than a few years. The US can then repurpose that power for other uses we will be needing it for. Officially, "RS complete" milestone, according to NASA is the addition of MLM, but the Russian Space Agency has a different definition of "RS complete" and that is at the addition of the second S&PPM.

I am now wondering how the power from those hypothetical power modules would be routed into the Russian segment, its not as if the MLM has been modified to somehow transmit that level of energy up into the base block.
Title: Re: Node Module - Russian segment
Post by: FinalFrontier on 06/27/2012 05:38 am
The Nodal Module's primary purpose is to host these, which will be required because the RS requires more power. Currently, they use US power to make up for the shortfall, under a barter arrangement that will run out in less than a few years. The US can then repurpose that power for other uses we will be needing it for. Officially, "RS complete" milestone, according to NASA is the addition of MLM, but the Russian Space Agency has a different definition of "RS complete" and that is at the addition of the second S&PPM.

I am now wondering how the power from those hypothetical power modules would be routed into the Russian segment, its not as if the MLM has been modified to somehow transmit that level of energy up into the base block.


External Jumper kit?
Title: Re: Node Module - Russian segment
Post by: PeterAlt on 06/27/2012 07:05 am
The Nodal Module's primary purpose is to host these, which will be required because the RS requires more power. Currently, they use US power to make up for the shortfall, under a barter arrangement that will run out in less than a few years. The US can then repurpose that power for other uses we will be needing it for. Officially, "RS complete" milestone, according to NASA is the addition of MLM, but the Russian Space Agency has a different definition of "RS complete" and that is at the addition of the second S&PPM.

I am now wondering how the power from those hypothetical power modules would be routed into the Russian segment, its not as if the MLM has been modified to somehow transmit that level of energy up into the base block.


The SM, FGB (folded), and soon the MLM produce power. So do the Progress, Soyuz, and ATV vehicles, but I think those arrays provide partial power to those vehicles while docked to the station. The power generated from the RS modules are added to the station power grid. The remaining power that is required for the RS is managed and taken from the USOS. Supposedly, the two power modules will allow the RS to be independent of the USOS, as far as power is concerned. I can see why the Russians would want this. After all, they've decided to pay a heavy price for their own GPS constellation because of their desire for independence. I'm sure they won't cut the connection between the RS and the USOS power grid, as one could at any time use more than supply. In that case, an interconnected system would borrow excess power from the other in order to meet a spike in demand and keep all systems operating smoothly.
Title: Re: Node Module - Russian segment
Post by: Nicolas PILLET on 06/29/2012 10:16 am
Some details in the 2011 Energiya annual report, where we learn that UM is internally called "573ГК".

Quote
Создание узлового модуля (УМ)

13 января 2011 года проведен научно-технический совет, на котором были рассмотрены и одобрены материалы эскизного проекта (ЭП) на УМ. В соответствии с решением совета материалы ЭП были направлены на экспертизу в ФГУП «ЦНИИ машиностроения», по результатам которой был подготовлен «План-график реализации мероприятий по устранению замечаний, содержащихся в Заключении ФГУП «ЦНИИ машиностроения» на ЭП по УМ №573ГК-3/106-11. Эскизный проект УМ откорректирован в соответствии с план-графиком.

В течение года проводились работы по выпуску конструкторской документации для изготовления УМ, в том числе по корректировке проектной документации по результатам выпуска конструкторской документации, включая корректировку эскизного проекта на РС МКС по интеграции модуля УМ.
Title: Re: Node Module - Russian segment
Post by: Lars_J on 06/29/2012 04:58 pm
Google translated version:

Quote
Create a node module (CM)

January 13, 2011 held scientific and technical council, which reviewed and approved preliminary design materials (EPO) at UM. In accordance with the decision of the Board of EP materials were sent for examination in the Federal State Unitary Enterprise "Central Research Institute of Machine Building," the results of which had been prepared "Schedule of activities to address the comments contained in the Opinion of FSUE" Central Research Institute of Machine Building "on the EP on the number 573GK UM-3 / 106-11. The draft of the PA is adjusted in accordance with the schedule.

During the year the work was carried out for the production of design documentation for the production of PA, including adjustments to the design documentation for the release of the results of the design documentation, including adjustments to the preliminary design for the integration of the RS ISS module UM.
Title: Re: Node Module - Russian segment
Post by: The man in the can on 07/25/2012 02:07 am
UM construction at RSC Energia (photo from Novosti kosmonavtiki forum).
Wow beautiful photo of the Node module under construction. Wait...
this photo...
is in black and white  ???
I don't want to be cinic but how do we know it's not an old photo of Mir hardware?
Title: Re: Node Module - Russian segment
Post by: Danderman on 07/25/2012 02:11 am

I don't want to be cinic but how do we know it's not an old photo of Mir hardware?

Because the docking adapters are much smaller in comparison with the Node hull, because the Node has a diameter of 3.3 meters, compared with the 2.2 meters for the Mir node.

Title: Re: Node Module - Russian segment
Post by: The man in the can on 07/25/2012 02:23 am

I don't want to be cinic but how do we know it's not an old photo of Mir hardware?
Because the docking adapters are much smaller in comparison with the Node hull, because the Node has a diameter of 3.3 meters, compared with the 2.2 meters for the Mir node.
Thanks! it was a quick reply!  :)
Title: Re: Node Module - Russian segment
Post by: woods170 on 12/17/2012 08:30 pm
How would a "Transformed Hybrid" port work? ??? Do the standard and hybrid ports not have different diameters?

As far as I can tell, they would simply put an APAS docking collar around the outer edge of the standard Probe & Drogue docking collar.

Obviously, this would mean that the hatchway wouldn't be as wide as the standard Hybrid system hatchway.

Attached is a graphic produced by me.
Nice graphic, but it is in error.
The inner diameter of the APAS docking ring is 125.5 cm.
The outer diameter of the SSVP-G4000 (standard russian drogue&cone docking system as used on Soyuz, Progress and ATV) is at least 10 cm. larger than the APAS docking ring inner diameter.
Put in short: simply fitting an APAS docking ring around the standard drogue&cone assembly doesn't work.
So, I still wonder what this transformed hybrid docking port on MLM nadir en Node Module nadir really looks like.
Title: Re: Node Module - Russian segment
Post by: 360-180 on 12/18/2012 02:58 am
How would a "Transformed Hybrid" port work? ??? Do the standard and hybrid ports not have different diameters?

As far as I can tell, they would simply put an APAS docking collar around the outer edge of the standard Probe & Drogue docking collar.

Obviously, this would mean that the hatchway wouldn't be as wide as the standard Hybrid system hatchway.

Attached is a graphic produced by me.
Nice graphic, but it is in error.
The inner diameter of the APAS docking ring is 125.5 cm.
The outer diameter of the SSVP-G4000 (standard russian drogue&cone docking system as used on Soyuz, Progress and ATV) is at least 10 cm. larger than the APAS docking ring inner diameter.
Put in short: simply fitting an APAS docking ring around the standard drogue&cone assembly doesn't work.
So, I still wonder what this transformed hybrid docking port on MLM nadir en Node Module nadir really looks like.
Interfaces SSVP-4000 and SSVP-8000 can be combined in a single plane.
Thanks member m-s Gelezniak from NК forum.
(http://img607.imageshack.us/img607/3610/abb2aecb7e38.jpg)
Title: Re: Node Module - Russian segment
Post by: woods170 on 12/18/2012 08:46 am
How would a "Transformed Hybrid" port work? ??? Do the standard and hybrid ports not have different diameters?

As far as I can tell, they would simply put an APAS docking collar around the outer edge of the standard Probe & Drogue docking collar.

Obviously, this would mean that the hatchway wouldn't be as wide as the standard Hybrid system hatchway.

Attached is a graphic produced by me.
Nice graphic, but it is in error.
The inner diameter of the APAS docking ring is 125.5 cm.
The outer diameter of the SSVP-G4000 (standard russian drogue&cone docking system as used on Soyuz, Progress and ATV) is at least 10 cm. larger than the APAS docking ring inner diameter.
Put in short: simply fitting an APAS docking ring around the standard drogue&cone assembly doesn't work.
So, I still wonder what this transformed hybrid docking port on MLM nadir en Node Module nadir really looks like.
Interfaces SSVP-4000 and SSVP-8000 can be combined in a single plane.
Thanks member m-s Gelezniak from NК forum.
(http://img607.imageshack.us/img607/3610/abb2aecb7e38.jpg)

Nice graphic. But again, my problem with this is that it's just a graphic. What I need is hard numbers for the diameters. I have a number for the inner diameter of the APAS-89/95 docking ring (SSVP-M8000). I also have a number for the outer diameter of the SSVP-G4000 docking ring.
And those numbers, quite literally, don't fit.
So, either one of those numbers is wrong, or the graphics are wrong.
Therefore: we need hard numbers on the diameters of the hard capture interfaces of SSVP-G4000 and SSVP-M8000. Does anyone have a source or link to a source where we can find those numbers? Particularly for SSVP-G4000. That's the legacy system, and I can't find solid numbers on it.
Title: Re: Node Module - Russian segment
Post by: 360-180 on 12/19/2012 07:06 am
I was talking only about the docking  interfaces. Not about the docking units.
The history of the hybrid mechanism can be found in the book "100 Stories About Docking and Other Adventures in Space" by Vladimir Syromiatnikov. Chapter 4.10
Hybrid unit uses a docking structural ring of APAS-89(95).
Title: Re: Node Module - Russian segment
Post by: woods170 on 12/19/2012 09:43 am
I was talking only about the docking  interfaces. Not about the docking units.
The history of the hybrid mechanism can be found in the book "100 Stories About Docking and Other Adventures in Space" by Vladimir Syromiatnikov. Chapter 4.10
Hybrid unit uses a docking structural ring of APAS-89(95).
Yes, the latter part I know. IDS also uses the APAS-89/95 structural ring. It's called the Hard Capture Assembly in the IDS specs.

Regarding the book: Unfortunately I'm not in a position to own mr. Syromiatnikov's excellent book. But I know it's a real good book. One of my contacts in the aerospace industry has a copy, signed by Vladimir himself. Too bad I can't afford a copy.
Title: Re: Node Module - Russian segment
Post by: manboy on 12/19/2012 02:13 pm
I was talking only about the docking  interfaces. Not about the docking units.
The history of the hybrid mechanism can be found in the book "100 Stories About Docking and Other Adventures in Space" by Vladimir Syromiatnikov. Chapter 4.10
Hybrid unit uses a docking structural ring of APAS-89(95).
I've been looking to find a copy of this book for years but neither Amazon nor Ebay has it.
Title: Re: Node Module - Russian segment
Post by: 360-180 on 12/19/2012 03:24 pm
"100 Stories About Docking and Other Adventures in Space"
In russian 100 рассказов о стыковке и о других приключениях в космосе и на Земле часть 1 главы 1-2 2003 (volume1, chapters 1-3, 2003) часть 2 главы 3-5 2008 (volume 2, chapters 3-5, 2008).
I think that in 2005, published in English, only the first volume of this book
 

Modify:'the book, translated by the Author, under the title 100 Stories about Docking and other Adventures in Space and on Earth (Volume 1 – 20 Years back) was published in English.'
Title: Re: Node Module - Russian segment
Post by: manboy on 12/19/2012 05:09 pm
"100 Stories About Docking and Other Adventures in Space"
In russian 100 рассказов о стыковке и о других приключениях в космосе и на Земле часть 1 главы 1-2 2003 (volume1, chapters 1-3, 2003) часть 2 главы 3-5 2008 (volume 2, chapters 3-5, 2008).
I think that in 2005, published in English, only the first volume of this book
 
I've heard from several people that it was very poorly translated. Anyway both the Russian and English editions appear to be rare (at least in the United States). And according to worldcat only four libraries in the US hold a copy of the English edition and five have the Russian edition. Luckily the Library of Congress has all the volumes and I travel to D.C. at least annually so maybe next time I visit I'll sit down and spend my day scanning all the books.
Title: Re: Node Module - Russian segment
Post by: Stan Black on 01/01/2013 10:23 am
Thanks to all who figured out the MLM docking system.

http://forum.nasaspaceflight.com/index.php?topic=23444

Now to the UM.

Is it to feature a similiar discarble adaptor on its nadir passive port? So how will NEM-1 be received? It will dock only with the probe, before Ljappa transitions it to a side port?
Title: Re: Node Module - Russian segment
Post by: PeterAlt on 01/01/2013 11:58 pm
I spoke too early and on the wrong thread when I asked in my second point in my recent post on the MLM thread. See that thread for the question when all six docking systems are known for certain on the Node Module.
Title: Re: Node Module - Russian segment
Post by: Danderman on 01/02/2013 04:57 am
"100 Stories About Docking and Other Adventures in Space"
In russian 100 рассказов о стыковке и о других приключениях в космосе и на Земле часть 1 главы 1-2 2003 (volume1, chapters 1-3, 2003) часть 2 главы 3-5 2008 (volume 2, chapters 3-5, 2008).
I think that in 2005, published in English, only the first volume of this book
 
I've heard from several people that it was very poorly translated. Anyway both the Russian and English editions appear to be rare (at least in the United States). And according to worldcat only four libraries in the US hold a copy of the English edition and five have the Russian edition. Luckily the Library of Congress has all the volumes and I travel to D.C. at least annually so maybe next time I visit I'll sit down and spend my day scanning all the books.

Hey, I know the story behind this one!

There is a Volume I and a Volume II. Although Volume I was translated into English, AFAIK, Vol II never was.

I was given the job of translating parts of Vol I from the original English translation into actual English; you will find that the translation of Vol I is wildly different, depending on the chapter you are reading. I did most of the editing while sitting on airplanes, which made things a little more difficult.

Vol I is available from Univelt:

http://www.univelt.com/book=604

http://www.univelt.com/univeltdist/100_Stories.pdf



Title: Re: Node Module - Russian segment
Post by: Danderman on 01/02/2013 04:59 am
Nice graphic, but it is in error.
The inner diameter of the APAS docking ring is 125.5 cm.
The outer diameter of the SSVP-G4000 (standard russian drogue&cone docking system as used on Soyuz, Progress and ATV) is at least 10 cm. larger than the APAS docking ring inner diameter.
Put in short: simply fitting an APAS docking ring around the standard drogue&cone assembly doesn't work.
So, I still wonder what this transformed hybrid docking port on MLM nadir en Node Module nadir really looks like.

My documentation states that the APAS/Hybrid collar allows a passage of 1100 mm (although all but 800 mm is blocked for the APAS implementation).
Title: Re: Node Module - Russian segment
Post by: 360-180 on 01/08/2013 08:51 am
Is it to feature a similiar discarble adaptor on its nadir passive port? So how will NEM-1 be received? It will dock only with the probe, before Ljappa transitions it to a side port?
I'm almost sure of it.
According specification NEM-1: (Google&my translation) :)

- A mechanical connection with the docking assembly NEM-1 UM; (-   механическое соединение)
- NEM-1 transfer from the nadir docking assembly to the side of the UM through robotic arm NEM-1;(-   перестыковка НЭМ )
- Hard mechanical connection between the UM and NEM-1. NEM-1 during docking docking unit to the side to form a UM tight passage between modules and  hydraulic and electrical linkages units;(-   жесткое механическое соединение НЭМ с УМ )
Title: Re: Node Module - Russian segment
Post by: 360-180 on 02/14/2013 12:55 pm
Title: Re: Node Module - Russian segment
Post by: manboy on 02/15/2013 04:59 am

You can see the adapter on the back.
Title: Re: Node Module - Russian segment
Post by: 360-180 on 02/15/2013 05:36 am
You can see the adapter on the back.
And the adapter has a weird pipe-bracket
Title: Re: Node Module - Russian segment
Post by: woods170 on 02/15/2013 06:28 am
My interpretation of what-is-what on 360-180's image.
Title: Re: Node Module - Russian segment
Post by: 360-180 on 02/15/2013 08:54 am
My interpretation of what-is-what
O.K. But RKK Energia uses the coordinate system of the module and in documents all the forward, aft and lateral units called АСП-ГБ (Агрегат стыковки пассивный-гибридный боковой) ie lateral. These units have small difference from the hybrid module Zvezda.
Title: Re: Node Module - Russian segment
Post by: Raul on 02/15/2013 11:00 am
Some 2 short tubes are visible on the adaptor. It's not at MLM adaptor. Likely illustration of some kind of grapple fixture for end-effector of ERA manipulator arm?
Title: Re: Node Module - Russian segment
Post by: woods170 on 02/15/2013 01:39 pm
Some 2 short tubes are visible on the adaptor. It's not at MLM adaptor. Likely illustration of some kind of grapple fixture for end-effector of ERA manipulator arm?

I don't think so. I know what an ERA grapple fixture looks like; flat round plates with notches. Those tubes don't even look remotely similar. They must be something else.
Title: Re: Node Module - Russian segment
Post by: russianhalo117 on 02/15/2013 03:10 pm
Some 2 short tubes are visible on the adaptor. It's not at MLM adaptor. Likely illustration of some kind of grapple fixture for end-effector of ERA manipulator arm?

I don't think so. I know what an ERA grapple fixture looks like; flat round plates with notches. Those tubes don't even look remotely similar. They must be something else.
Looks similar to the next generation Lappa arm connectors Energia proposed a few years ago.
Title: Re: Node Module - Russian segment
Post by: Raul on 02/15/2013 03:41 pm
Some 2 short tubes are visible on the adaptor. It's not at MLM adaptor. Likely illustration of some kind of grapple fixture for end-effector of ERA manipulator arm?
I don't think so. I know what an ERA grapple fixture looks like; flat round plates with notches. Those tubes don't even look remotely similar. They must be something else.
Yes, that flat round plates will be base-points. But I hope ERA will also use something like for example integrated service tool or dexterous gripper which can have more possibilities.
Title: Re: Node Module - Russian segment
Post by: 360-180 on 02/15/2013 04:09 pm
Looks similar to the next generation Lappa arm connectors Energia proposed a few years ago.
In this figure Ljappa connector shows in the center of woods170's left circle
Title: Re: Node Module - Russian segment
Post by: russianhalo117 on 02/15/2013 04:16 pm
Some 2 short tubes are visible on the adaptor. It's not at MLM adaptor. Likely illustration of some kind of grapple fixture for end-effector of ERA manipulator arm?
I don't think so. I know what an ERA grapple fixture looks like; flat round plates with notches. Those tubes don't even look remotely similar. They must be something else.
Yes, that flat round plates will be base-points. But I hope ERA will also use something like for example integrated service tool or dexterous gripper which can have more possibilities.
To my knowledge at present there is currently no publicly available plan for integrated service tool or dexterous gripper at this time. However there are soft plans for developing an adapter to allow ERA to handle payloads from Canada Arm 2 as any moderately large external RS payloads delivered via USOS VV's would have to be handed off or additional CA2 PDGF brackets would have to be installed on RS side to deliver such possible payloads in the future. So at this time it is unlikely ERA will have these features.
Title: Re: Node Module - Russian segment
Post by: russianhalo117 on 02/15/2013 04:22 pm
Looks similar to the next generation Lappa arm connectors Energia proposed a few years ago.
In this figure Ljappa connector shows in the center of woods170's left circle
I already know that. Was sort of trying to answer Raul question, but misunderstood since there are planned to Lappa interfaces so all four ports can be reached by incoming module's Lappa arms.
Title: Re: Node Module - Russian segment
Post by: 360-180 on 02/16/2013 01:57 am
Title: Re: Node Module - Russian segment
Post by: russianhalo117 on 02/16/2013 05:49 am

one is mounted on the adaptor ring and other is on UM itself, which is identical to MLM's SSPA-GM docking interface and adaptor. Using a schematic i came across these look like they are to be installed while MLM is still at RSC Energia. They also look like temporary connectors, but without them installed and shown in actual photo during or around integration then we will not know. They look as if they are mounted onto a type of removable brackets.
Title: Re: Node Module - Russian segment
Post by: woods170 on 02/16/2013 05:23 pm
Some 2 short tubes are visible on the adaptor. It's not at MLM adaptor. Likely illustration of some kind of grapple fixture for end-effector of ERA manipulator arm?
I don't think so. I know what an ERA grapple fixture looks like; flat round plates with notches. Those tubes don't even look remotely similar. They must be something else.
Yes, that flat round plates will be base-points. But I hope ERA will also use something like for example integrated service tool or dexterous gripper which can have more possibilities.
Nope. They don't exist for ERA and they are not in development either.
Title: Re: Node Module - Russian segment
Post by: Raul on 02/18/2013 11:13 am
Nope. They don't exist for ERA and they are not in development either.
Ok, I meant just something like that. Despite of any extensions of operational capabilities for ERA is not yet in develompent, it can be some extension designed just for that adaptor.

However as we know, this adaptor will have to be uninstalled due to NEM-1 docking. After NEM-1 will be relocated via Ljappa arm, it will be necessary install it back to allow further docking of Soyuz/Progress spacecrafts to UM nadir. So UM nadir port has to be reversible transformable because of that. Contrary to similar adapter at MLM, which can be sent to atmosphere together with last Progress spacecraft, then it doesn't need anything in sense of grapple fixture.
Adaptor relocation can be maybe realized together with Progress redocking to lateral port, or at worst by Strela crane during EVA. But much effective and simple solution could be via some grapple fixture and ERA, maybe similar as we can see also at future NDS-APAS docking adapter, but with thinner rod because this adaptor is quite narrow.
http://en.wikipedia.org/wiki/File:NDS_APAS_docking_adapter.png
And such grapple fixture as installed quite long thin tool could be a problem in launch. So it can be tilting, or simply removable.  It can be possible to install during EVA even before NEM-1 docking to just such small tube as extension to mounting base. More than one of these mounting bases can be as option for better accessibility.

But it’s my speculation, of course. It’s not out of question that these tubes on adaptor can be anything other or there will be any other mounting base for some grapple fixture.
Title: Re: Node Module - Russian segment
Post by: anik on 03/16/2013 01:54 pm
As per RSC Energia's info, Progress M-UM launch is planned on June 24, 2014.
Title: Re: Node Module - Russian segment
Post by: Galactic Penguin SST on 03/16/2013 02:28 pm
As per RSC Energia's info, Progress M-UM launch is planned on June 24, 2014.

That means that the module must be in advanced construction right now - are there any recent images of it?
Title: Re: Node Module - Russian segment
Post by: russianhalo117 on 03/19/2013 12:21 am
As per RSC Energia's info, Progress M-UM launch is planned on June 24, 2014.

That means that the module must be in advanced construction right now - are there any recent images of it?
Not since beginning of constructions.
Title: Re: Node Module - Russian segment
Post by: 360-180 on 04/02/2013 01:53 pm
That means that the module must be in advanced construction right now - are there any recent images of it?
http://www.militarynews.ru/excl.asp?ex=165

Quote
Президент РКК "Энергия" Виталий Лопота:

- Как идет производство Узлового модуля для МКС? Когда можно ожидать его запуска?

- В настоящее время изготовлены макет Узлового модуля для статических испытаний, корпуса динамического макета и штатного изделия Узлового модуля. Статический макет прошел испытания в РКК "Энергия" и ЦНИИмаш. Проводится сборка и оснащение динамического макета и штатного изделия.

Запуск Узлового модуля в составе транспортного грузового корабля-модуля "Прогресс М-УМ" запланирован на середину 2014 г. с космодрома Байконур.
G-translation


- How is the production node module for the ISS? When will it start?

[President of RSC "Energia" Vitaly Lopota:]- Currently manufactured layout node module for static testing {static test mockup}, dynamic layout {dinamic test article} and housing product regular node module {flight hardware shell}. Static layout was tested in RSC "Energia" and TsNIImash. Held an assembly and fitting dynamic layout and a standard product.

Starting the node module in the cargo vehicle module "Progress M-UM" is scheduled for mid-2014 from the Baikonur Cosmodrome.

Title: Re: Node Module - Russian segment
Post by: 360-180 on 05/20/2013 04:28 am
UM simulator is installed in ISS RS Mockup facility
Title: Re: Node Module - Russian segment
Post by: Stan Black on 05/22/2013 03:43 pm
Quote
Доработка агрегата 17Т725 для обеспечения транспортирования КГЧ с СЗБ 81КС-УМ

http://www.samspace.ru/zakupki/plany_zakupok/
http://www.samspace.ru/upload/iblock/87b/План%20закупки%20ГНПРКЦ%20ЦСКБ-Прогресс.xlsx
Title: Re: Node Module - Russian segment
Post by: anik on 06/19/2013 10:42 am
http://www.energia.ru/ru/news/news-2013/news_06-19.html
Title: Re: Node Module - Russian segment
Post by: woods170 on 06/19/2013 11:01 am
http://www.energia.ru/ru/news/news-2013/news_06-19.html

Thanks Anik. That looks like a decent amount of progress. The UM is larger than I thought it would be.
Title: Re: Node Module - Russian segment
Post by: 360-180 on 07/12/2013 01:11 pm
Title: Re: Node Module - Russian segment
Post by: Stan Black on 07/12/2013 08:21 pm
We have a name: «Причал»?

http://www.e-disclosure.ru/portal/files.aspx?id=1615&type=2
Title: Re: Node Module - Russian segment
Post by: 360-180 on 07/12/2013 08:48 pm
We have a name: «Причал»?
Yes. Words «Причал» and «Пирс» is synonymous in the Russian language  ;)
Title: Re: Node Module - Russian segment
Post by: woods170 on 07/13/2013 08:38 am
We have a name: «Причал»?
Yes. Words «Причал» and «Пирс» is synonymous in the Russian language  ;)

"Berth" versus "Pier" ?
Title: Re: Node Module - Russian segment
Post by: 360-180 on 07/13/2013 02:07 pm
"Berth" versus "Pier" ?
berth [bəːθ] n (bed, in caravan) ко́йка* (:on ship) каю́та; (:on train) по́лка* (mooring) прича́л
Пирс (от англ. piers, множественное число от «pier» — столб, мол, пристань, причал)
Title: Re: Node Module - Russian segment
Post by: Danderman on 10/14/2013 05:05 pm
It looks like the underwater mockup of the Node has been built:

http://www.energia.ru/en/news/news-2013/news_10-11.html

Title: Re: Node Module - Russian segment
Post by: Danderman on 10/16/2013 06:11 pm
One issue that has not been discussed here much is the Progress PAO that will bring the Node to ISS. Because of the Node's heavy lateral docking ports, the current Progress thruster arrangement is insufficient to control the stack during docking operations - so, at the very least, the mid section thrusters will have to be moved.

I have not seen any documentation on this modification. Nor do I know if the modification to the thrusters would become standard for future Progress.
Title: Re: Node Module - Russian segment
Post by: Lars_J on 10/16/2013 06:23 pm
One issue that has not been discussed here much is the Progress PAO that will bring the Node to ISS. Because of the Node's heavy lateral docking ports, the current Progress thruster arrangement is insufficient to control the stack during docking operations - so, at the very least, the mid section thrusters will have to be moved.

I have not seen any documentation on this modification. Nor do I know if the modification to the thrusters would become standard for future Progress.

Is this just based on your own thinking or do you have a source for this assertion?
Title: Re: Node Module - Russian segment
Post by: Prober on 10/16/2013 06:28 pm
One issue that has not been discussed here much is the Progress PAO that will bring the Node to ISS. Because of the Node's heavy lateral docking ports, the current Progress thruster arrangement is insufficient to control the stack during docking operations - so, at the very least, the mid section thrusters will have to be moved.

I have not seen any documentation on this modification. Nor do I know if the modification to the thrusters would become standard for future Progress.
I'm having some real doubts this design is for use with the ISS.
Title: Re: Node Module - Russian segment
Post by: 360-180 on 10/20/2013 09:53 am
One issue that has not been discussed here much is the Progress PAO that will bring the Node to ISS. Because of the Node's heavy lateral docking ports, the current Progress thruster arrangement is insufficient to control the stack during docking operations - so, at the very least, the mid section thrusters will have to be moved.

I have not seen any documentation on this modification. Nor do I know if the modification to the thrusters would become standard for future Progress.

http://novosti-kosmonavtiki.ru/forum/messages/forum10/topic12244/message898397/#message898397
Title: Re: Node Module - Russian segment
Post by: 360-180 on 10/20/2013 10:06 am
http://novosti-kosmonavtiki.ru/forum/messages/forum10/topic12244/message1086827/#message1086827
PAO mockup and UM mockup for static ground test
Title: Re: Node Module - Russian segment
Post by: Danderman on 10/20/2013 02:42 pm
One issue that has not been discussed here much is the Progress PAO that will bring the Node to ISS. Because of the Node's heavy lateral docking ports, the current Progress thruster arrangement is insufficient to control the stack during docking operations - so, at the very least, the mid section thrusters will have to be moved.

I have not seen any documentation on this modification. Nor do I know if the modification to the thrusters would become standard for future Progress.

http://novosti-kosmonavtiki.ru/forum/messages/forum10/topic12244/message898397/#message898397


According to this diagram, the mid section thrusters extend out to 1.57 meters from the center line, compared to 1.22 meters for Progress.

If you look closely on the image above, you can see mid section thrusters on a stand-off.
Title: Re: Node Module - Russian segment
Post by: 360-180 on 10/20/2013 04:36 pm
According to this diagram, the mid section thrusters extend out to 1.57 meters from the center line, compared to 1.22 meters for Progress.

If you look closely on the image above, you can see mid section thrusters on a stand-off.
Yes. 350mm
Title: Re: Node Module - Russian segment
Post by: baldusi on 10/21/2013 12:11 am
I don't want to disrupt the thread, but once this new thruster configuration is done. Couldn't this be used for a new Progress configuration that can take advantage of the Soyuz-2.1B performance?
Title: Re: Node Module - Russian segment
Post by: 360-180 on 10/21/2013 04:38 am
I don't want to disrupt the thread, but once this new thruster configuration is done. Couldn't this be used for a new Progress configuration that can take advantage of the Soyuz-2.1B performance?
Yes. Module UM+800 kg pressurized cargo
Title: Re: Node Module - Russian segment
Post by: Prober on 10/21/2013 07:26 pm
http://novosti-kosmonavtiki.ru/forum/messages/forum10/topic12244/message1086827/#message1086827 (http://novosti-kosmonavtiki.ru/forum/messages/forum10/topic12244/message1086827/#message1086827)
PAO mockup and UM mockup for static ground test
this looks like Soyuz tooling was used?
How does the size compare with Soyuz?
Title: Re: Node Module - Russian segment
Post by: Danderman on 10/22/2013 12:04 am
http://novosti-kosmonavtiki.ru/forum/messages/forum10/topic12244/message1086827/#message1086827 (http://novosti-kosmonavtiki.ru/forum/messages/forum10/topic12244/message1086827/#message1086827)
PAO mockup and UM mockup for static ground test
this looks like Soyuz tooling was used?
How does the size compare with Soyuz?

It is brand new 3.3 meter tooling.

Title: Re: Node Module - Russian segment
Post by: 360-180 on 10/22/2013 05:33 am
http://novosti-kosmonavtiki.ru/forum/messages/forum10/topic12244/message1086827/#message1086827 (http://novosti-kosmonavtiki.ru/forum/messages/forum10/topic12244/message1086827/#message1086827)
PAO mockup and UM mockup for static ground test
this looks like Soyuz tooling was used?
How does the size compare with Soyuz?
This is new PAO for Progress MS.
LV Soyuz 2-1b & 4.1m fairing
 
Title: Re: Node Module - Russian segment
Post by: Prober on 10/22/2013 01:03 pm
Great thx for the pic .....very interesting.
Title: Re: Node Module - Russian segment
Post by: woods170 on 10/22/2013 06:09 pm
http://novosti-kosmonavtiki.ru/forum/messages/forum10/topic12244/message1086827/#message1086827 (http://novosti-kosmonavtiki.ru/forum/messages/forum10/topic12244/message1086827/#message1086827)
PAO mockup and UM mockup for static ground test
this looks like Soyuz tooling was used?
How does the size compare with Soyuz?
This is new PAO for Progress MS.
LV Soyuz 2-1b & 4.1m fairing
 
Isn't that the old Ariane 4 fairing that also in use on the Soyuz ST-B?
Title: Re: Node Module - Russian segment
Post by: russianhalo117 on 10/22/2013 06:15 pm
http://novosti-kosmonavtiki.ru/forum/messages/forum10/topic12244/message1086827/#message1086827 (http://novosti-kosmonavtiki.ru/forum/messages/forum10/topic12244/message1086827/#message1086827)
PAO mockup and UM mockup for static ground test
this looks like Soyuz tooling was used?
How does the size compare with Soyuz?
This is new PAO for Progress MS.
LV Soyuz 2-1b & 4.1m fairing
 
Isn't that the old Ariane 4 fairing that also in use on the Soyuz ST-B?
It is similar in design and material but not identical based on the info that I have somewhere on my computer.
Title: Re: Node Module - Russian segment
Post by: Nicolas PILLET on 10/25/2013 04:05 pm
http://www.youtube.com/watch?v=3q02vQugqRg
Title: Re: Node Module - Russian segment
Post by: Prober on 10/25/2013 06:39 pm


Thx for the video....looks like a lot more room inside with those new hatches.
Title: Re: Node Module - Russian segment
Post by: Danderman on 10/26/2013 02:49 pm


Thx for the video....looks like a lot more room inside with those new hatches.


Just to be clear, the lots of room is a function of the 3.3 meter diameter of the module, compared to the old nodes, with 2.2. meter diameters.
Title: Re: Node Module - Russian segment
Post by: 360-180 on 10/27/2013 06:35 am
Isn't that the old Ariane 4 fairing that also in use on the Soyuz ST-B?

This is fairing "81КС" or "тип СТ". Structural design developed TsSKB  ;)
Title: Re: Node Module - Russian segment
Post by: Nicolas PILLET on 01/21/2014 03:56 pm
A picture of the model which will be used for training in the Hydrolab :

http://rsc-etestpilot.blogspot.ru/2014/01/blog-post_20.html
Title: Re: Node Module - Russian segment
Post by: paycom on 01/21/2014 04:53 pm
http://www.youtube.com/watch?v=3q02vQugqRg
For those of us who don't speak Russian: is the node module shown in the video the flight unit or a mockup / engeneering model?
Title: Re: Node Module - Russian segment
Post by: Nicolas PILLET on 01/21/2014 06:39 pm
For those of us who don't speak Russian: is the node module shown in the video the flight unit or a mockup / engeneering model?

The commentator doesn't give the answer to this question...
Title: Re: Node Module - Russian segment
Post by: asmi on 01/24/2014 05:42 pm
Interview with V. Lopota:
http://www.militarynews.ru/excl.asp?ex=219
Quote
Узловой модуль в настоящее время уже изготовлен РКК "Энергия" и проходит заводские испытания.
Quote
Node module is already built by Energia and is undergoing testing.
Title: Re: Node Module - Russian segment
Post by: saturnapollo on 01/24/2014 08:18 pm
Quote
A picture of the model which will be used for training in the Hydrolab :

Are you sure that's a training module? It has the look of a flight article with all the decalling and other detail.

Keith
Title: Re: Node Module - Russian segment
Post by: 360-180 on 01/30/2014 04:35 am
Quote
A picture of the model which will be used for training in the Hydrolab :

Are you sure that's a training module? It has the look of a flight article with all the decalling and other detail.

Keith
This is insider's info. http://rsc-etestpilot.blogspot.ru/2014/01/blog-post_20.html
@Точнее макет для тренировок в гидроневесомости.
Пожалуй таких красивых и очень похожих на лётное изделие макетов для бассейна у нас ещё не делали[email protected]
Title: Re: Node Module - Russian segment
Post by: Danderman on 02/14/2014 11:22 pm
Here is a drawing of the Node module + PAO in the transporter container, from the NK forum.
Title: Re: Node Module - Russian segment
Post by: Danderman on 02/15/2014 03:53 pm
A slightly different perspective:

Title: Re: Node Module - Russian segment
Post by: 360-180 on 03/30/2014 07:10 am
Node module + PAO in the transporter container, from the NK forum.
http://novosti-kosmonavtiki.ru/forum/messages/forum10/topic12244/message1232433/#message1232433
Title: Re: Node Module - Russian segment
Post by: Nicolas PILLET on 04/10/2014 02:43 pm
New pictures :

http://www.energia.ru/ru/news/news-2014/news_04-09.html
Title: Re: Node Module - Russian segment
Post by: Prober on 04/10/2014 10:06 pm
2.Node module is equipped with six docking assemblies. One of them will be docked to multipurpose laboratory module Nauka and provide a capability to receive up to four new modules, as well as docking of the existing and advanced transport vehicles.
3.Currently, electrical checks of NM flight article equipment and systems are nearing completion. As part of NM building project, its test articles are manufactured: dynamic mockup, brassboard, as well as the mockup for EVA operations development testing under conditions of simulating z-gravity at neutral buoyancy laboratory of Yu.A. Gagarin CTC Research Institute.
Title: Re: Node Module - Russian segment
Post by: Stan Black on 11/04/2016 09:17 am
Will the docking unit feature a hybrid docking port with an adapter like found on Nauka. Also when the NEM docks, will it soft dock before being translated to a side port?

So let me see if I understand…

Zvezda has three hybrid docking units at one end. The hybrid uses the larger diameter hatch from the APAS docking system, but fitted with a standard probe and cone type docking system. Only one cone is required, it is moved for each docking or undocking. Attached to Zvezda by this mechanism is Zarya, Pirs and Poisk, and in the future possibly Nauka (once Pirs is discarded).
https://forum.nasaspaceflight.com/index.php?topic=23444.msg994325#msg994325

In the early plans Zarya also featured hybrid at the nadir port. The early plans included Soyuz-TM №201, №202 and №203 also fitted with hybrids so they could dock. (The part completed Soyuz-TM №201 was used to prepare №206).
https://web.archive.org/web/20030924064202/http://www.novosti-kosmonavtiki.ru/content/numbers/233/32.shtml

Nauka (the Multipurpose Laboratory Module) is also to feature hybrids. A solution has been found to allow Progress and Soyuz to dock to Nauka, that does not require customised configurations. As the cone sticks out slightly from the hybrid, an additional adapter has been placed on Nauka’s hybrid to convert it into a standard docking interface. At some point this adapter will have to be removed from Nauka, possibly by a departing Progress, to allow the next module Prichal to dock.
https://forum.nasaspaceflight.com/index.php?topic=23444.msg994001#msg994001
https://forum.nasaspaceflight.com/index.php?topic=23444.msg1108796#msg1108796

Prichal (the Node Module) is to be operated like on Mir. It will feature two cones, one facing nadir to receive dockings, and one moveable for the side ports. Illustrations show the side ports as hybrids. Once docked a module is translated to the side port using a small mechanical arm called Lyappa.

So the Science and Power Module (NEM) would not be able to fully dock with Prichal, only by the probe and cone, before translation. Or would the adapter be temporarily removed from Prichal? It would still be required after the arrival of the NEM, for Soyuz and Progress dockings.
Title: Re: Node Module - Russian segment
Post by: Olaf on 12/16/2019 10:27 am
https://www.militarynews.ru/story.asp?rid=1&nid=523749&lang=RU
Google translation
Russia may refuse to launch two modules to the ISS for the creation of a lunar station - Rogozin
Quote
Russian modules can become the basis for a promising lunar station instead of being sent to the ISS, Dmitry Rogozin, head of the Roskosmos state corporation, told reporters.
"As for the next modules, whether they will be sent to the ISS, or will they become a prototype for creating modules that can operate in the orbit of the moon, this is a good question that we started discussing now," Rogozin said at a press conference at the Vostochny spaceport .
According to him, we are talking about scientific energy and nodal modules.
Title: Re: Node Module - Russian segment
Post by: russianhalo117 on 03/18/2020 03:25 pm
Note that Progress M-UM (№303) slated to carry Prichal received modernisation upgrades in order to match that of Progress-MS so that it can perform a docking using the successor KURS-NP (Station)/KURS-NA (Russian VV and modules) antennas for its automated docking. It is now per the NK forums/schedule as well as the NSF schedule been given the updated designation Progress MS-UM (№303) to reflect those and other upgrades.
Title: Re: Node Module - Russian segment
Post by: zubenelgenubi on 05/31/2020 07:39 pm
Cross-post:
https://twitter.com/anik1982space/status/1265737827976916993
Quote
From today's Rogozin in the Solovyov LIVE channel: - it is planned to create a new Russian near-Earth station after 2030, it will include the Nodal and Scientific and Energy Modules.
If so, neither of these modules would be launched to ISS. They would remain on Earth until construction of the proposed LEO space station begins. (https://forum.nasaspaceflight.com/index.php?topic=26990.msg2087965#msg2087965)
Title: Re: Node Module - Russian segment
Post by: zubenelgenubi on 09/30/2020 05:13 am
Belated update:
https://twitter.com/RussianSpaceWeb/status/1301520770489815042
Quote
As our subscribers already know, the launch of Roscosmos' UM Prichal module is now planned for September 6, 2021 (almost exactly a year from now)...
Title: Re: Node Module - Russian segment
Post by: zubenelgenubi on 09/30/2020 05:15 am
Cross-post:
https://ria.ru/20200930/mks-1577975397.html
Google translate:
Quote
"The launch of the multipurpose laboratory module "Science" is scheduled for April 20, 2021, and the "Prichal" nodal module - for September 14, 2021," the agency's source said.
Title: Re: Node Module - Russian segment
Post by: zubenelgenubi on 11/02/2020 09:05 pm
https://twitter.com/anik1982space/status/1323304275716546561
Quote from: Tweet, Google translate
Deputy Director of the Department of Manned Programs of Roscosmos Vladimir Daneev announced the timing of the launch of Russian modules to the ISS:
- Multipurpose laboratory "Science" (MLM-U Nauka) - end of April 2021;
- Junction "Berth" (UM Prichal)- September 2021;
- Scientific and energy (NEM) - 2024.
Title: Re: Node Module - Russian segment
Post by: SMS on 12/01/2020 12:36 am
https://ria.ru/20201201/zapusk-1587077079.html

Progress M-UM with Prichal module launch is postponed to November 24, 2021.
Title: Re: Node Module - Russian segment
Post by: Stan Black on 12/19/2020 03:07 pm
Note that Progress M-UM (№303) slated to carry Prichal received modernisation upgrades in order to match that of Progress-MS so that it can perform a docking using the successor KURS-NP (Station)/KURS-NA (Russian VV and modules) antennas for its automated docking. It is now per the NK forums/schedule as well as the NSF schedule been given the updated designation Progress MS-UM (№303) to reflect those and other upgrades.

Still called Прогресс М-УМ in this tender:-
https://www.zakupki.gov.ru/epz/order/notice/ok504/view/common-info.html?regNumber=0995000000220000083
Title: Re: Node Module - Russian segment
Post by: Stan Black on 07/30/2021 12:46 pm
What function does this module provide now that the N.E.M. modules are no longer to be part of the I.S.S.?
Title: Re: Node Module - Russian segment
Post by: Lars-J on 07/30/2021 11:46 pm
What function does this module provide now that the N.E.M. modules are no longer to be part of the I.S.S.?
Additional docking ports, storage, perhaps even a contingency airlock.
Title: Re: Node Module - Russian segment
Post by: gemmy0I on 07/31/2021 01:32 am
What function does this module provide now that the N.E.M. modules are no longer to be part of the I.S.S.?
Additional docking ports, storage, perhaps even a contingency airlock.
Additional docking ports for visiting vehicles would definitely be handy. It'd require adapters to convert the sturdier/larger-passthrough hybrid ports (designed for module attachment) to the standard SSVP ports used by Russian visiting vehicles, but that's simple enough. Nauka has one on its nadir port now (to be removed and disposed by a Progress before NM/Prichal arrives).

Since the central docking probe/cone are the same between hybrid and SSVP ports, the adapter only needs to convert the outer "collar" ring used for hard docking - much simpler than, by contrast, the IDAs to convert APAS-95 to IDS on the US side. (Which is to say, it's probably something that can be whipped up in any competent machine shop, rather than "the tooling doesn't exist any more so we've only got spares from the '80s".)

The need for extra visiting-vehicle docking ports is more acute on the USOS right now than on the ROS, but it's probably still tighter than they'd like now that they're trying to avoid Zvezda-aft due to the leaks. So a couple extra SSVP ports on Prichal could be useful.

What would be really useful, though, is some extra IDS-compatible ports that can host modern visiting vehicles. With both cargo and crew Dragons using docking ports now instead of berthing, port traffic seems to be a major limiting factor now for expanding private ISS flights (particularly long-duration ones). Right now, if a private crew visiting the ISS needs to send up supporting cargo on a private flight, the cargo flight has to arrive first, get unloaded by expedition astronauts, and then depart to make room for the private crew. Things would be a lot more flexible if one or more cargo ships could be docked alongside two crew ships. HTV-X is apparently also going to be docking (with IDS) instead of berthing, further exacerbating the situation.

Russia has its own implementation of IDS (which they continue to call "APAS" since its design lineage is closer to APAS than how Boeing and SpaceX chose to implement IDS), and as I understand it, Prichal is designed such that its ports can easily be converted to that standard. If they were to equip, say, two of the four radial Prichal ports for IDS compatibility, I'm sure the commercial market would happily pay to dock at them and provide a nice stream of revenue for Roscosmos.

The biggest obstacle would be not the mechanical interface but the station-side autonomous rendezvous hardware which needs to be mounted for vehicles to approach it. While the port itself is standardized by IDS for compatibility, the method of autonomous rendezvous is (to my knowledge) not. Hence the U.S. commercial crew program came up with its own standard (the C2V2 system used by Dragon and Starliner); I'm guessing Russia plans to instead use some evolution of Kurs and TORU. So any hypothetical IDS-compatible ports on Prichal would either need to be outfitted with American C2V2 hardware, or Dragon would need to be modified to talk to Kurs. Either option could present political difficulties (especially with the squawk Roscosmos made about uncrewed Dragon approaches being "unsafe" due to not having a TORU-style teleoperated backup mode).

On the other hand, manually docking Dragon/Starliner to an IDS port on Prichal would be straightforward (as the crews have to train for manual dockings anyway). Wouldn't work for cargo Dragons, but those could continue to go to the IDAs on the US side.

Probably not likely to happen given all the political hoops that would need to be jumped through, but fun to speculate about anyway. :)
Title: Re: Node Module - Russian segment
Post by: russianhalo117 on 07/31/2021 01:53 am
What function does this module provide now that the N.E.M. modules are no longer to be part of the I.S.S.?
Additional docking ports, storage, perhaps even a contingency airlock.
Additional docking ports for visiting vehicles would definitely be handy. It'd require adapters to convert the sturdier/larger-passthrough hybrid ports (designed for module attachment) to the standard SSVP ports used by Russian visiting vehicles, but that's simple enough. Nauka has one on its nadir port now (to be removed and disposed by a Progress before NM/Prichal arrives).

Since the central docking probe/cone are the same between hybrid and SSVP ports, the adapter only needs to convert the outer "collar" ring used for hard docking - much simpler than, by contrast, the IDAs to convert APAS-95 to IDS on the US side. (Which is to say, it's probably something that can be whipped up in any competent machine shop, rather than "the tooling doesn't exist any more so we've only got spares from the '80s".)

The need for extra visiting-vehicle docking ports is more acute on the USOS right now than on the ROS, but it's probably still tighter than they'd like now that they're trying to avoid Zvezda-aft due to the leaks. So a couple extra SSVP ports on Prichal could be useful.

What would be really useful, though, is some extra IDS-compatible ports that can host modern visiting vehicles. With both cargo and crew Dragons using docking ports now instead of berthing, port traffic seems to be a major limiting factor now for expanding private ISS flights (particularly long-duration ones). Right now, if a private crew visiting the ISS needs to send up supporting cargo on a private flight, the cargo flight has to arrive first, get unloaded by expedition astronauts, and then depart to make room for the private crew. Things would be a lot more flexible if one or more cargo ships could be docked alongside two crew ships. HTV-X is apparently also going to be docking (with IDS) instead of berthing, further exacerbating the situation.

Russia has its own implementation of IDS (which they continue to call "APAS" since its design lineage is closer to APAS than how Boeing and SpaceX chose to implement IDS), and as I understand it, Prichal is designed such that its ports can easily be converted to that standard. If they were to equip, say, two of the four radial Prichal ports for IDS compatibility, I'm sure the commercial market would happily pay to dock at them and provide a nice stream of revenue for Roscosmos.

The biggest obstacle would be not the mechanical interface but the station-side autonomous rendezvous hardware which needs to be mounted for vehicles to approach it. While the port itself is standardized by IDS for compatibility, the method of autonomous rendezvous is (to my knowledge) not. Hence the U.S. commercial crew program came up with its own standard (the C2V2 system used by Dragon and Starliner); I'm guessing Russia plans to instead use some evolution of Kurs and TORU. So any hypothetical IDS-compatible ports on Prichal would either need to be outfitted with American C2V2 hardware, or Dragon would need to be modified to talk to Kurs. Either option could present political difficulties (especially with the squawk Roscosmos made about uncrewed Dragon approaches being "unsafe" due to not having a TORU-style teleoperated backup mode).

On the other hand, manually docking Dragon/Starliner to an IDS port on Prichal would be straightforward (as the crews have to train for manual dockings anyway). Wouldn't work for cargo Dragons, but those could continue to go to the IDAs on the US side.

Probably not likely to happen given all the political hoops that would need to be jumped through, but fun to speculate about anyway. :)
The UM forward port will not be available to propulsive and certain other VV's due clearance issues with the science airlock and collision with docked RS VV's and USOS. UM is launching with one adapter on its Nadir Port and covers on the aft, forward, port and starboard ports and antennas and hardware would have to be flown and attached via EVA. Only the zenith and nadir ports will be equipped with such hardware at launch launch according to the latest plan. UM sports two Lyappa arm grapple fixtures in addition to the ERA grapple fixtures (they might still fly installed as originally planned). That is the safest way to install an arriving module on the radial ports with all modules arriving via the nadir port. Adapters cannot be flown on Soyuz and Progress spacecraft due to KURS antenna clearances in the launch position.
Title: Re: Node Module - Russian segment
Post by: Rondaz on 07/31/2021 02:40 pm
The "Prichal" junction module went to Baikonur

07/31/2021 16:28

At the control and test station of the Rocket and Space Corporation "Energia" S.P. Korolev (part of the Roscosmos State Corporation), technological tests of the Prichal nodal module as part of the Progress M-UM transport cargo vehicle-module have been completed. Today, July 31, 2021, the spacecraft went to the technical complex of the Baikonur cosmodrome to continue assembly and pre-flight preparation in accordance with the schedule for the further development of the Russian segment of the International Space Station.

In recent weeks, RSC Energia specialists have successfully completed a cycle of joint tests of the Prichal module with the integrated stands of the Zvezda service module and the Nauka multipurpose laboratory module on the territory of the KIS. After the final operations, the undocked components of the spacecraft and ground test equipment were prepared for shipment to the cosmodrome by rail.

The launch of the Prichal nodal module into low-earth orbit as part of the Progress M-UM transport cargo vehicle-module using the Soyuz-2.1 launch vehicle is planned for November 2021.

https://www.roscosmos.ru/32057/
Title: Re: Node Module - Russian segment
Post by: Rondaz on 07/31/2021 02:41 pm
One module was docked to the ISS, now we are preparing the next.

Today, the nodal module # Berth went to the Baikonur cosmodrome. Its launch into orbit as part of the Progress M-UM cargo vehicle-module is planned for November 2021.

https://twitter.com/roscosmos/status/1421463419786600451
Title: Re: Node Module - Russian segment
Post by: smoliarm on 08/02/2021 06:51 am
Ok, if Roscosmos says they will NOT add any other modules after this one - then WHY they are going to add A NODE ?
 :o

What kind of docking port they have on Nauka's nadir?
Title: Re: Node Module - Russian segment
Post by: gsa on 08/02/2021 09:58 am
What kind of docking port they have on Nauka's nadir?
It's the same kind as Zvezda's nadir port. Only Nauka's one has an Soyuz docking adaptor on top of it (the ring only, the cone is compatible).
The adapter will be removed before Prichal docking.
Title: Re: Node Module - Russian segment
Post by: chrikohl on 08/02/2021 06:54 pm
Ok, if Roscosmos says they will NOT add any other modules after this one - then WHY they are going to add A NODE ?
 :o

I don't rememer the source, so take it with a grain of salt. But aparrently this node module has some imperfections, which limit its warranted life. So for ROSS there will be a second, new one, as the whole idea of it is to be the one uncomplex centerpiece with a long lifetime, while all other modules are replaceable. I assume they will use it as a storage space.