Author Topic: Orbital ATK make progress toward Return To Flight of Antares rocket  (Read 17552 times)


Offline Sesquipedalian

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Great interview and great article!  Nice to see some clarification of the incomplete information that's been floating around.

Offline dror

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Great read, thanks!

will the new Antares all fly with a castor 30xl or will there be a different upper stage?
also, will the cores be produced in Ukraine and will the bigger prop tanks mean an Antares 300 (as per Baldusi's question http://forum.nasaspaceflight.com/index.php?topic=32903.msg1415701#msg1415701 ) ?
« Last Edit: 08/14/2015 04:50 PM by dror »
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Offline ChrisGebhardt

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Great read, thanks!

will the new Antares all fly with a castor 30xl or will there be a different upper stage?

Castor 30XL. This version of the second stage is what allows Antares to launch the Enhanced Cygnus.

Offline sdsds

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Great interview and great article!  Nice to see some clarification of the incomplete information that's been floating around.

Totally agree! Hearing that the plan is only two Cygnus flights on Atlas is certainly reassuring. Good work by you guys getting that nailed down!
-- sdsds --

Offline russianhalo117

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Great read, thanks!

will the new Antares all fly with a castor 30xl or will there be a different upper stage?
also, will the cores be produced in Ukraine and will the bigger prop tanks mean an Antares 300 (as per Baldusi's question http://forum.nasaspaceflight.com/index.php?topic=32903.msg1415701#msg1415701 ) ?
AFAIK, 200 series will use up the remaining 100 series booster cores (Short Tank) with RD-181s running underrated so it can fly a similar trajectory/ascent plan for most efficient Castor-30XL burn and 300 series will use the extended booster cores (Long Tank) with either full/uprated RD-181s. There are enough 100 series cores to fly out the CRS1 contract with a couple of spares. I remember 12 units total are available..
« Last Edit: 08/14/2015 05:17 PM by russianhalo117 »

Offline clongton

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Great update Chris G. Thanks. I am so very pleased to see AO making such good progress on the RTF of the Antares. AO and SpaceX are the left and right hand of ISS resupply and they have been missed. I am glad they were able to get the Atlas to fly their spacecraft until Antares came back online. Making the spacecraft LV agnostic was a smart thing to do, as demonstrated by this entire situation.
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Offline dsell88

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Great read, thanks!

will the new Antares all fly with a castor 30xl or will there be a different upper stage?

Castor 30XL. This version of the second stage is what allows Antares to launch the Enhanced Cygnus.

According to their fact sheet they are still offering the 30B as an option, though we won't see it on anymore Cygnus missions. Time will tell if we see an Antares flying anything else...

Offline baldusi

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Great read, thanks!

will the new Antares all fly with a castor 30xl or will there be a different upper stage?
also, will the cores be produced in Ukraine and will the bigger prop tanks mean an Antares 300 (as per Baldusi's question http://forum.nasaspaceflight.com/index.php?topic=32903.msg1415701#msg1415701 ) ?
AFAIK, 200 series will use up the remaining 100 series booster cores (Short Tank) with RD-181s running underrated so it can fly a similar trajectory/ascent plan for most efficient Castor-30XL burn and 300 series will use the extended booster cores (Long Tank) with either full/uprated RD-181s. There are enough 100 series cores to fly out the CRS1 contract with a couple of spares. I remember 12 units total are available..
Might the 300 series have an Castor 30XLB or a cryo upper stage?

Offline russianhalo117

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Great read, thanks!

will the new Antares all fly with a castor 30xl or will there be a different upper stage?
also, will the cores be produced in Ukraine and will the bigger prop tanks mean an Antares 300 (as per Baldusi's question http://forum.nasaspaceflight.com/index.php?topic=32903.msg1415701#msg1415701 ) ?
AFAIK, 200 series will use up the remaining 100 series booster cores (Short Tank) with RD-181s running underrated so it can fly a similar trajectory/ascent plan for most efficient Castor-30XL burn and 300 series will use the extended booster cores (Long Tank) with either full/uprated RD-181s. There are enough 100 series cores to fly out the CRS1 contract with a couple of spares. I remember 12 units total are available..
Might the 300 series have an Castor 30XLB or a cryo upper stage?
I do not have any indication of either at this time. 300 series was only announced briefly in the last two investor meetings.

Offline a_langwich

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Great read, thanks!

will the new Antares all fly with a castor 30xl or will there be a different upper stage?
also, will the cores be produced in Ukraine and will the bigger prop tanks mean an Antares 300 (as per Baldusi's question http://forum.nasaspaceflight.com/index.php?topic=32903.msg1415701#msg1415701 ) ?
AFAIK, 200 series will use up the remaining 100 series booster cores (Short Tank) with RD-181s running underrated so it can fly a similar trajectory/ascent plan for most efficient Castor-30XL burn and 300 series will use the extended booster cores (Long Tank) with either full/uprated RD-181s. There are enough 100 series cores to fly out the CRS1 contract with a couple of spares. I remember 12 units total are available..
Might the 300 series have an Castor 30XLB or a cryo upper stage?
I do not have any indication of either at this time. 300 series was only announced briefly in the last two investor meetings.

Was the 300 series proposed as the Antares launcher for CRS-2?  If, as you say, the 200 series will finish out CRS-1, and we know of no other customers at this time,...

Didn't Orbital-ATK propose RL-10s for their StratoLaunch design?  Unlikely they would show up in an Antares?  I wonder how a higher ISP liquid upper affects Antares' ability to move into the sweet spot of commercial payloads?  What would it take to entice a comm sat customer?

Offline Ronsmytheiii

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Was the 300 series proposed as the Antares launcher for CRS-2?  If, as you say, the 200 series will finish out CRS-1, and we know of no other customers at this time,...

We dont know the contents of Orbital's CRS-2 bid at this tiem other than the fact that they did bid

Quote
Didn't Orbital-ATK propose RL-10s for their StratoLaunch design?  Unlikely they would show up in an Antares?  I wonder how a higher ISP liquid upper affects Antares' ability to move into the sweet spot of commercial payloads?  What would it take to entice a comm sat customer?

from: http://www.nasaspaceflight.com/2014/10/dream-chaser-eyes-rides-with-under-review-stratolaunch-system/

Quote
Once the solid stages have been expended, a restartable cryogenic third stage was understood to be the preference. This would utilize two Aerojet Rocketdyne (PWR) RL-10 engines for the development and early flights of the rocket, pending the development of a higher thrust LOX-Hydrogen unit.
However, the review into the rocket system is understood to be looking at an all-solid version of the rocket.
As such, Aerojet has been given a stop work order for the upper stage engine work, per L2 information.
Meanwhile, ATK has been asked to evaluate and price a two stage replacement for the liquid upper stage, believed to be a Castor 30 combo (XL and/or B).

AS I understand it, when asked if the RL-10 stage would be used on Antares Orbital mentioned the question of IP ownership. Also, Wallops is not in an optimal place for GEO launches and lacks hydrogen infrastructure, so with Falcon 9 doing relatively well wouldnt expect OrbitalATK to push a liquid upperstage unless they sign a customer.
« Last Edit: 08/15/2015 01:26 PM by Ronsmytheiii »
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Offline Rocket Science

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Thank you for the great update Chris G. Wishing them all the best as they return to full ops again. :)
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December 07, 2015
MEDIA ADVISORY M15-152

Media Invited to See Progress Toward Space Station Launches from Virginia

 
NASA, Orbital ATK and the Mid-Atlantic Regional Spaceport (MARS) will conduct a tour at 10:30 a.m. EST, on Thursday, Dec. 17, for media to view the completed work and preparations to resume next year commercial cargo resupply missions to the International Space Station from the agency’s Wallops Flight Facility in Wallops Island, Virginia.

Wallops Director Bill Wrobel will talk with media at Pad-0A about progress made and next steps. Dale Nash, executive director of the Virginia Commercial Space Flight Authority, which owns and operates MARS, will provide a tour of the pad, and Mike Pinkston, Orbital ATK general manager and vice president of the Antares program, will lead a tour of the company’s Horizontal Integration Facility.

Media who would like to attend this event must contact Keith Koehler at [email protected] by 5 p.m. Dec. 14. For this event, only media who are U.S. citizens may attend.

A commercial resupply capability is vital to continued research and habitation aboard the International Space Station. The space station has enabled NASA to demonstrate new technologies and make research breakthroughs not possible on Earth over its 15 years of continuous human presence. Restoring a medium-class launch capability from Wallops is critical to furthering NASA’s and the nation’s goals in space, maintaining the space station as a springboard to the agency’s next giant leap in exploration -- including future missions to an asteroid and Mars.

Orbital ATK’s Antares program remains on schedule to commence flight operations from Wallops in the first half of 2016. The Antares is undergoing integration, with two new RD-181 engines fully installed into the first stage of the rocket. The program is working toward a full-power engine test on the launch pad early next year.

MARS has completed major repair work at Pad-0A, including modification of the commodity and purge lines to support the new engines, following the Antares launch mishap in October 2014. The team stands ready to support resumption of the cargo resupply launches with the upgraded Antares launch vehicle.

For more information about Orbital ATK resupply missions, visit:

http://www.nasa.gov/orbitalatk

For more information about the International Space Station, its crew and research, visit:

http://www.nasa.gov/station

Offline llanitedave

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Still need a coat of paint on that water tank.
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Offline NovaSilisko

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Still need a coat of paint on that water tank.

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Offline Chris Bergin

December 07, 2015
MEDIA ADVISORY M15-152

Media Invited to See Progress Toward Space Station Launches from Virginia

 
NASA, Orbital ATK and the Mid-Atlantic Regional Spaceport (MARS) will conduct a tour at 10:30 a.m. EST, on Thursday, Dec. 17, for media to view the completed work and preparations to resume next year commercial cargo resupply missions to the International Space Station from the agency’s Wallops Flight Facility in Wallops Island, Virginia.

Wallops Director Bill Wrobel will talk with media at Pad-0A about progress made and next steps. Dale Nash, executive director of the Virginia Commercial Space Flight Authority, which owns and operates MARS, will provide a tour of the pad, and Mike Pinkston, Orbital ATK general manager and vice president of the Antares program, will lead a tour of the company’s Horizontal Integration Facility.

Media who would like to attend this event must contact Keith Koehler at [email protected] by 5 p.m. Dec. 14. For this event, only media who are U.S. citizens may attend.

A commercial resupply capability is vital to continued research and habitation aboard the International Space Station. The space station has enabled NASA to demonstrate new technologies and make research breakthroughs not possible on Earth over its 15 years of continuous human presence. Restoring a medium-class launch capability from Wallops is critical to furthering NASA’s and the nation’s goals in space, maintaining the space station as a springboard to the agency’s next giant leap in exploration -- including future missions to an asteroid and Mars.

Orbital ATK’s Antares program remains on schedule to commence flight operations from Wallops in the first half of 2016. The Antares is undergoing integration, with two new RD-181 engines fully installed into the first stage of the rocket. The program is working toward a full-power engine test on the launch pad early next year.

MARS has completed major repair work at Pad-0A, including modification of the commodity and purge lines to support the new engines, following the Antares launch mishap in October 2014. The team stands ready to support resumption of the cargo resupply launches with the upgraded Antares launch vehicle.

For more information about Orbital ATK resupply missions, visit:

http://www.nasa.gov/orbitalatk

For more information about the International Space Station, its crew and research, visit:

http://www.nasa.gov/station



Good photo for an upcoming Philip Sloss article on the forward plan for Cygnus and Antares.

Offline rayleighscatter

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A bunch of news stories from the press event at Wallops this week. Culling some of the details from them...
Two cores present at Wallops, one for a March hotfire, one for a May/June launch.
Two more RD-181s arrived last week


Offline Saabstory88

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Maybe this is a stupid question, but why is there both an RD-181 designation, and an RD-191 designation? Are these engines significantly different? Or is there an export issue where the engine has to be re-designated?

Offline baldusi

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I don't think there's enough information. But things like attachment points, RP-1 certification, controller interfaces, propellant feed lines, etc. can vary from one LV to another. So it would stand to reason that the adapted engime might be somewhat different.

Offline russianhalo117

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Maybe this is a stupid question, but why is there both an RD-181 designation, and an RD-191 designation? Are these engines significantly different? Or is there an export issue where the engine has to be re-designated?
RD-181 is foreign export version of internal RD-191


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