-
#520
by
Stan Black
on 16 Oct, 2010 20:30
-
-
#521
by
Prof68
on 16 Oct, 2010 23:57
-
When did Zenit loose the skirt?
Between Zenit-2 and Zenit-3SL.
It is one of changes which was developed for Sea Launch variant of Zenit, but now used in Land Launch too.
IMHO, skirt on Zenit-2 was simply atavism inherited from Blok A of Energia rocket.
-
#522
by
Stan Black
on 17 Oct, 2010 08:48
-
When did Zenit loose the skirt?
Between Zenit-2 and Zenit-3SL.
It is one of changes which was developed for Sea Launch variant of Zenit, but now used in Land Launch too.
IMHO, skirt on Zenit-2 was simply atavism inherited from Blok A of Energia rocket.
Thank you… looks like the three Zenit intended for Globalstar also lack a skirt (launches in 1998, 2004 and 2007)
-
#523
by
Suzy
on 19 Oct, 2010 03:59
-
When will the last flight of the Soyuz-TMA variant be? TMA-22 flies in 2012 according to the ISS launch list.
-
#524
by
JimO
on 19 Oct, 2010 04:30
-
Question: How do the organizers of the April 11-15 'Humans in Space' Symposium in Houston (just announced) expect the Russians to react regarding competing with Moscow's own 50th anniversary of Gagarin commemoration on April 12th? Hopefully this has all been diplomatically smoothed over in advance.
NASA, University of Houston to Host Humans in Space Symposium
http://www.prnewswire.com/news-releases/nasa-university-of-houston-to-host-humans-in-space-symposium-105207739.htmlHOUSTON, Oct. 18 /PRNewswire-USNewswire/ -- Space researchers, physicians, astronauts, and operations experts from around the world will gather April 11-15, 2011, in Houston to discuss the next chapter in human spaceflight at the 18th International Academy of Astronautics (IAA) Humans in Space Symposium.
-
#525
by
Olaf
on 19 Oct, 2010 09:10
-
When will the last flight of the Soyuz-TMA variant be? TMA-22 flies in 2012 according to the ISS launch list.
According to Anik´s list of Russian launches Soyuz TMA22 wil be launched on September, 30th 2011.
-
#526
by
steveS
on 20 Oct, 2010 13:35
-
Can some one explain about the "space/volume for a 3 person crew" inside the Soyuz descending module?. From landing pictures, the capsule looks barely taller than a human !! and inside it must accommodate a 3 person crew. How difficult is for a tall cosmonaut/astronaut to cope up with this reduced volume of space ?
-
#527
by
brianyee0
on 20 Oct, 2010 14:17
-
I heard Jeff Williams describe it as "three triplets inside a womb", so it must feel extremely cramped. The other part of his description was that you only fit if you sit in the fetal position, knees to chest almost.
Can some one explain about the "space/volume for a 3 person crew" inside the Soyuz descending module?. From landing pictures, the capsule looks barely taller than a human !! and inside it must accommodate a 3 person crew. How difficult is for a tall cosmonaut/astronaut to cope up with this reduced volume of space ?
-
#528
by
Danderman
on 20 Oct, 2010 15:48
-
Some caveats to the above description of the interior of the Soyuz descent module: first off, it seems crowded because everyone is wearing a space suit while inside. Secondly, the descent module only contains 3 people for relatively short periods of time; mostly, launch and re-entry. Once the spacecraft is in orbit, the orbital module is where the crew hangs out.
The interior volume of the Soyuz is significantly larger than that of Apollo.
-
#529
by
Stephan
on 20 Oct, 2010 15:56
-
Correct, and because picture speaks louder than words, see :
-
#530
by
steveS
on 21 Oct, 2010 04:23
-
Correct, and because picture speaks louder than words, see :
Thank you for the image and the explanation.
1. Is this inside the descent module or the orbital module?
2. In case of most recent Soyuz TMA-18 landing; The timeline was: Crew hatch closure ~ 6:35 EDT and landing ~ 1:21 a.m EDT Sept 25, 2010. Hence, altogether the crew must have spent about 7 hours inside the spacecraft. So were crew inside the descent module all the time or they spent some part of the time inside the orbital module before it was jettisoned?
-
#531
by
steveS
on 21 Oct, 2010 04:39
-
Found an image on Soyuz spacecraft dimensions in Wikipedia. The descent and orbital module are 2.1 m and 2.6 m in length. Both have a diameter of 2.2 m.
-
#532
by
Prof68
on 22 Oct, 2010 01:09
-
When did Zenit loose the skirt?
Between Zenit-2 and Zenit-3SL.
It is one of changes which was developed for Sea Launch variant of Zenit, but now used in Land Launch too.
IMHO, skirt on Zenit-2 was simply atavism inherited from Blok A of Energia rocket.
Thank you… looks like the three Zenit intended for Globalstar also lack a skirt (launches in 1998, 2004 and 2007)
You are definitely correct about the rocket launched in 2007. This rocket was modified in 2005 or 2006 to transitional non standard variant which include some of elements of Zenit-3SLB. One of changes was removal of RD-171 and installation of RD-171M, so even if skirt was here, it should be removed.
I do not sure about first two rockets, but as a pure guesswork i think it is possible - these 3 rockets were last production batch of Zenit-2, they were produced simultaneously with a first batch of Zenit-3 SLB, so this change could be incorporated into them too.
-
#533
by
Stan Black
on 25 Oct, 2010 10:16
-
-
#534
by
kevin-rf
on 30 Oct, 2010 01:53
-
With lively debate over in the spacex section about reserve chutes, has a soyuz ever had a main failure and then had to rely on the reserve chute to save the day?
-
#535
by
Danderman
on 30 Oct, 2010 04:21
-
With lively debate over in the spacex section about reserve chutes, has a soyuz ever had a main failure and then had to rely on the reserve chute to save the day?
Well, kind of. The main chute failed, but so did the reserve chute.
-
#536
by
kevin-rf
on 30 Oct, 2010 12:01
-
Other than Soyuz 1?
-
#537
by
Hungry4info3
on 30 Oct, 2010 12:12
-
Other than Soyuz 1?
As Danderman was getting at, the reserve chute on Soyuz 1 failed to save the day.
-
#538
by
Danderman
on 30 Oct, 2010 15:06
-
The Soyuz cupola: what is its function, given that during docking, the crew remains in the descent module?
-
#539
by
Lars_J
on 30 Oct, 2010 21:05
-
What cupola? Do you have an image of it?
