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#180 by Zond on 17 Apr, 2008 20:20
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Excalibur Almaz claims they own several TKS capsules and that they will use these capsules to launch people into space. Has anybody heard any rumours of Krunichev (or somebody else) actively working on refurbishing these capsules?
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#181 by roguerobot on 17 Apr, 2008 23:04
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I'm making a short film about early soviet spaceflight. It's a zero budget personal project, but I didn't realise when I wrote it that there was so little technical information about Vostok available. I'm hoping someone on this thread can help with some questions regarding the Vzor.
In the film, the main character - a fictional female cosmonaut - must use the Vzor to realign the Sharik/Capsule for reentry. The craft hasn't hit the correct orbit so she has to manually set the trajectory for reentry.
Anyway - I believe Vzor is used for this purpose but I cannot find out exactly what it looks like or how it works. Can someone give me a layman's explanation of its workings and how it would be used to correctly align a craft? I particularly need visual explanation and, even better, some hires images of the Vzor.
Any help would be greatly appreciated and credited on the final film - if I ever get the damn thing finished! -
#182 by Jorge on 18 Apr, 2008 19:59
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whitewatcher - 17/4/2008 3:02 PM
QuoteJorge - 17/4/2008 8:13 PM
Quotewhitewatcher - 17/4/2008 12:39 PM
I would like to know how a sojus is flown at docking time. As far as I know they have two sticks, but ...
- how many axis' per stick?
- which stick axis is linked to which one of the 6 DOF?
The rotational hand controller has three axes, and controls all three corresponding rotational degrees of freedom.
The translational hand controller has two axes and a toggle switch. The toggle switch controls translation in the longitudinal (X) axis) and the two-axis stick controls the other two.
Thank you!
Which one is the left/right hand stick?
Translation on left, rotation on right. -
#183 by Danderman on 21 Apr, 2008 00:11
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Zond - 17/4/2008 1:20 PM Excalibur Almaz claims they own several TKS capsules and that they will use these capsules to launch people into space. Has anybody heard any rumours of Krunichev (or somebody else) actively working on refurbishing these capsules?
FWIW, I have heard no such rumors. There have been plans in the past to do so, but were never funded.
The capsules from time to time have been relocated, that is about all I know.
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#184 by Danderman on 22 Apr, 2008 16:40
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Soyuz T-13/Salyut 7
This mission was the first totally manual docking of a Soyuz to a space station. Since Salyut 7 was frozen dead for the first days after docking, my question is: where and how did Soyuz manage its power supply? Normally, a Soyuz may draw power from a docked space station. In free flight, Soyuz maintains a solar inertial reference, and is usually in a flat spin with the solar panels facing the sun. So, how did Soyuz T-13 maintain this inertial reference while docked to Salyut 7?
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#185 by silver t on 24 Apr, 2008 16:01
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Does the Soyuz TMA descent module release a base heatshield before using its landing thrusters? I didn't think it did but all the images seem to show a really clean looking base. Perhpas the charring comes off when it hits the ground?!?!
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#186 by Jorge on 24 Apr, 2008 16:34
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silver t - 24/4/2008 11:01 AM
Does the Soyuz TMA descent module release a base heatshield before using its landing thrusters?
Yes. -
#187 by DarthVader on 24 Apr, 2008 16:36
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silver t - 24/4/2008 9:01 AM
Does the Soyuz TMA descent module release a base heatshield before using its landing thrusters? I didn't think it did but all the images seem to show a really clean looking base. Perhpas the charring comes off when it hits the ground?!?!
Yes, the heat-shield is discarded while the descent module is coming down, after the opening of the main parachute. See the following image for a bit mode details on the sequence:
http://i88.photobucket.com/albums/k166/suzymchale/mars-center/soyuz-reentry-2grande.jpg
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#188 by silver t on 24 Apr, 2008 19:07
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thanks people, that explains the appearance of the base of the vehicle
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#189 by Suzy on 27 Apr, 2008 07:50
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Quote
Jorge - 19/4/2008 5:59 AM
Quotewhitewatcher - 17/4/2008 3:02 PM
Translation on left, rotation on right.QuoteJorge - 17/4/2008 8:13 PM
Thank you! Which one is the left/right hand stick?Quotewhitewatcher - 17/4/2008 12:39 PM I would like to know how a sojus is flown at docking time. As far as I know they have two sticks, but ... - how many axis' per stick? - which stick axis is linked to which one of the 6 DOF?
The rotational hand controller has three axes, and controls all three corresponding rotational degrees of freedom. The translational hand controller has two axes and a toggle switch. The toggle switch controls translation in the longitudinal (X) axis) and the two-axis stick controls the other two.Couple of diagrams:
- Soyuz hand controllers diagram, from a NASA Apollo-Soyuz technical manual (old, but I don't think it's changed much?).
- Soyuz TM cockpit
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#190 by Suzy on 27 Apr, 2008 08:53
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What is the fuel that limits the Soyuz's stay-in-space time? Is it the Hydrogen Peroxide oxidizer? Extract from the 2 September 2004 ISS On-Orbit Status Report:
Update on Soyuz 9S: Launch of CDR Leroy Chiao and FE Salizhan Sharipov continues to be set for 10/9. Their Soyuz TMA-5 spacecraft is the first with two new features that are welcome improvements of the reliable old crew transport: two additional forward-pointing braking thrusters (#27, #28) besides the two engines (#17, #18) already near the Orbital Module’s docking ring; and a thermo-electric cooler for the Descent Module’s Hydrogen Peroxide tankage, to extend the life of the H2O2 which tends to deteriorate in time to H2O and O. (H2O2 is one of the most powerful oxidizers known – stronger than chlorine, chlorine dioxide, and potassium permanganate, but it has been [and still is, until certification] limiting Soyuz’ orbital stay time).
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#191 by Nicolas PILLET on 27 Apr, 2008 10:23
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Do you know what is the origin of the number "7" in the Soyouz official designation ("7K") ?
The number 7 was also used for the "Vostok-7" project... But why
Thank you very much ! -
#192 by Michael Cassutt on 27 Apr, 2008 19:07
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Nicolas PILLET - 28/4/2008 4:23 AM
Do you know what is the origin of the number "7" in the Soyouz official designation ("7K") ?
The number 7 was also used for the "Vostok-7" project... But why
Thank you very much !
"7" was a program designator. There were a pair of Vostok models -- 1 and 3 -- and unmanned spy satellite versions of same (Zenits 2 and 4). The 7 was one of three vehicles in the Soyuz program -- there was a spacecraft 9 (a tanker) and an 11 (an upper stage), I believe.
There was also an interim design for a manned vehicle -- a #5 spacecraft called "Sever".
I'm going from memory here, so don't take this as reliable even to Wikipedia level. But the essential information should hold up.
Michael Cassutt -
#193 by Nicolas PILLET on 27 Apr, 2008 20:39
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Yes, I know it, but why there wasn't spacecrafts dubbed 6K, or 8K ?
1K, 2K, 3K and 4K refer to different versions developped for the "Vostok" program.
5K refer to "Sever".
7K refer to "Soyouz"
But where is "6K" ? -
#194 by Michael Cassutt on 27 Apr, 2008 20:54
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Nicolas PILLET - 28/4/2008 2:39 PM
Yes, I know it, but why there wasn't spacecrafts dubbed 6K, or 8K ?
1K, 2K, 3K and 4K refer to different versions developped for the "Vostok" program.
5K refer to "Sever".
7K refer to "Soyouz"
But where is "6K" ?
Probably for some military vehicle that never got beyond the design stage. I interviewed Feoktistov once, and he suggested that the "odd" numbers were for ostensibly civilian developments, with the even for military. (I say "suggested" because he said this with a big smile and a gesture that made it obvious he wasn't going to say more, or really didn't know.)
MC -
#195 by Michael Cassutt on 27 Apr, 2008 20:57
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Nicolas PILLET - 28/4/2008 2:39 PM
Do you know what is the origin of the number "7" in the Soyouz official designation ("7K") ?
Yes, I know it, but why there wasn't spacecrafts dubbed 6K, or 8K ?
1K, 2K, 3K and 4K refer to different versions developped for the "Vostok" program.
5K refer to "Sever".
7K refer to "Soyouz"
But where is "6K" ?
The number 7 was also used for the "Vostok-7" project... But why "
Just out of curiosity, why do you ask a question when you already know the answer?
MC
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#196 by Suzy on 28 Apr, 2008 04:25
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What are the descent modes of the Soyuz? According to this post there are 4: controlled automatic, controlled manual, and two ballistic - but what are the specifics of each? I can't find clear details of these anywhere (including the "SoyCOM" Manual).
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#197 by Nicolas PILLET on 28 Apr, 2008 08:15
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Michael Cassutt - 27/4/2008 10:57 PM
Just out of curiosity, why do you ask a question when you already know the answer?
MC
Actually, my question was : why Soyouz is refered to as "7K" and not "6K" !...
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#198 by Danderman on 29 Apr, 2008 04:40
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Here is an implied question from another thread: is the Argon-16 computer located in the Soyuz descent module? If not, what is the flight computer for Soyuz re-entry?
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#199 by anik on 29 Apr, 2008 13:49
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Argon-16 computer is in PAO (Instrumentation/Propulsion Module). It operates Soyuz flight from launch to PAO separation. KS-020M computer is in SA (Descent Module). It operates Soyuz flight after PAO separation.
Actually, my question was : why Soyouz is refered to as "7K" and not "6K" !...