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#40
by
Satori
on 27 Oct, 2014 07:42
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#41
by
Satori
on 27 Oct, 2014 07:49
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October 27, 2014
Soyuz launch vehicle rollout to the launch pad
At Baikonur launch site the preparations continue for the launch of Progress M-25M cargo vehicle under the International Space Station program.
Soyuz launch vehicle was rolled out from the integration building to the launch pad. Soyuz-2.1a launch vehicle with Progress M-25M transport vehicle is installed on the launch pad. L-2 days activities have been started.
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#42
by
Satori
on 27 Oct, 2014 10:04
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Launcher integration on MIK
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#43
by
asmi
on 27 Oct, 2014 13:02
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Rollout (Roscosmos video):
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#44
by
jcm
on 27 Oct, 2014 21:51
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Acording to my classification, Progress M-25M will be the 350th Soviet/Russian spaceship to attempt to reach orbit !
18 Vostok/Voskhod, 146 Soyuz, 147 Progress, 7 BOR, 1 Buran, 15 L1, 1 LOK, 3 T2K, 8 VA, 3 TKS.
OK, I admit that BOR and T2K are not really "spaceships"... That's just for the fun of statistics ! 
I wouldn't consider Progress a space ship. The re-entry mode is quite different... ;-)
Different from the Apollo lunar module? :-)
Different from an ISS module?
and many science fiction spaceships cannot enter atmosphere...
I would say there is an interesting category of 'spacecraft with pressurized volume that can be entered on orbit
by astronauts'... Progress and the ISS modules are the same in this respect - I think 'spaceship' is a reasonable
word for this category, but YMMV.
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#45
by
edkyle99
on 27 Oct, 2014 22:44
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Snow already!
- Ed Kyle
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#46
by
russianhalo117
on 27 Oct, 2014 23:03
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Snow already!
- Ed Kyle
yep and more to come.
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#47
by
Lewis007
on 28 Oct, 2014 09:54
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Snow already!
- Ed Kyle
yep and more to come.
Winter is coming... (not only in Westeros)
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#48
by
Fuji
on 28 Oct, 2014 11:32
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#49
by
Galactic Penguin SST
on 28 Oct, 2014 11:44
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One could see that the introduction of upgraded control systems greatly improved the orbit injection accuracy in the Soyuz series:
For Progress M-25M the orbit specifications are:
Inclination: 51.67 ± 0.03 °
Perigee: 193 ± 2 km
Apogee: 240 ± 5 km
Period: 88.53 ± 0.05 min
....compared with that of Progress M-24M:
Inclination: 51.66 ± 0.06 °
Perigee: 193 + 7 / -15 km
Apogee: 245 ± 42 km
Period: 88.59 ± 0.37 min
Also notice that there are some differences in the launch sequence as well - notably that the fairing separates much later on the Soyuz-2 (T+296.35s instead of T+160.56s on the Soyuz-U, i.e. now after 2nd stage has separated!). I think this is because separating later is actually preferable, but due to the limited control ability on the older series the fairing had to be shaved earlier in flight?
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#50
by
Chris Bergin
on 28 Oct, 2014 12:04
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One of the best Progress threads, lots of good info here. Many thanks!
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#51
by
asmi
on 28 Oct, 2014 12:33
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Also notice that there are some differences in the launch sequence as well - notably that the fairing separates much later on the Soyuz-2 (T+296.35s instead of T+160.56s on the Soyuz-U, i.e. now after 2nd stage has separated!). I think this is because separating later is actually preferable, but due to the limited control ability on the older series the fairing had to be shaved earlier in flight?
I doubt it - if anything
presence of fairing makes control easier.
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#52
by
Danderman
on 28 Oct, 2014 13:40
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Also notice that there are some differences in the launch sequence as well - notably that the fairing separates much later on the Soyuz-2 (T+296.35s instead of T+160.56s on the Soyuz-U, i.e. now after 2nd stage has separated!). I think this is because separating later is actually preferable, but due to the limited control ability on the older series the fairing had to be shaved earlier in flight?
This also could be the way that Soyuz 2 maintains the same drop zone for the core stage as for Soyu-U, by carrying the fairing longer.
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#53
by
Danderman
on 28 Oct, 2014 13:42
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MCC-M is released Progress-M-25M homepage. Payload weight is 2,350kg.
http://www.mcc.rsa.ru/progress_m25m.htm
Amazingly, payload mass and vehicle mass are listed as exactly the same as for a Soyuz-U mission, even though Soyuz-2 provides an extra 400 kg upmass capability.
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#54
by
Chris Bergin
on 28 Oct, 2014 20:56
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#55
by
Chris Bergin
on 29 Oct, 2014 00:15
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Will appreciate it if someone can cover this as I'm still working with the Antares failure and there's no way I'm going to be able to work with a few hours sleep.
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#56
by
Prober
on 29 Oct, 2014 03:05
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Will appreciate it if someone can cover this as I'm still working with the Antares failure and there's no way I'm going to be able to work with a few hours sleep.
the hrs might work for me....will try
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#57
by
Steven Pietrobon
on 29 Oct, 2014 05:15
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I'll be able to cover this. Coverage starts in 30 minutes.
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#58
by
Mark McCombs
on 29 Oct, 2014 05:24
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Thanks for the information, Galactic Penguin SST. Good stuff.
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#59
by
Prober
on 29 Oct, 2014 05:41
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ok here we go... the music isn't bad
