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#2880
by
psloss
on 25 Mar, 2013 12:54
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Wasn't the GOX vent valve left open after sep to promote tumbling?
No; early tanks had a separate tumble valve, but it was eventually deleted. There's a good deal of film/video shot by the flight crews of the LH2 vent valve relieving, post sep.
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#2881
by
DaveS
on 06 Apr, 2013 23:29
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What was the average altitude/velocity when the first stage roll program was initiated at?
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#2882
by
Fequalsma
on 07 Apr, 2013 01:17
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#2883
by
HelixSpiral
on 10 Apr, 2013 18:49
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What was the average altitude/velocity when the first stage roll program was initiated at?
According the Ascent/Aborts Flight Procedures Handbook, roll program was standardized at Vrel 118.45 fps starting with OI-23.
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#2884
by
DaveS
on 22 Apr, 2013 01:03
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Does anyone know the distance between the aft compartment and the outboard elevons and the gap between the outboard elevons and inboard elevons?
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#2885
by
spacescribe
on 26 Apr, 2013 17:41
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And the entry director, is he based in Houston or KSC?
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#2886
by
DaveS
on 26 Apr, 2013 17:49
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And the entry director, is he based in Houston or KSC?
All post-launch activities were controlled from the regular shuttle FCR in the MCC. The FRs were used to support post-landing activities starting at hand-off from MCC to KSC once ground cooling and purge were activated.
The Entry Flight Director is in MCC.
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#2887
by
OV135
on 29 Apr, 2013 15:51
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What will become of the Orbiter Transporter that was used to transport the orbiters from the OPF to the VAB now that it's use of moving Atlantis is over?
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#2888
by
Jim
on 29 Apr, 2013 16:12
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What will become of the Orbiter Transporter that was used to transport the orbiters from the OPF to the VAB now that it's use of moving Atlantis is over?
Sold to another user, given to a museum or sold for scrap. In that order.
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#2889
by
JayP
on 29 Apr, 2013 17:46
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What will become of the Orbiter Transporter that was used to transport the orbiters from the OPF to the VAB now that it's use of moving Atlantis is over?
Sold to another user, given to a museum or sold for scrap. In that order.
Durring the move from the VAB to the KSCVC last year, there were Beyel Brothers logos on the OTS in several locations, but I don't know if that was because they had purchased it or just because they were opperating it at the time.
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#2890
by
Jim
on 29 Apr, 2013 18:04
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Durring the move from the VAB to the KSCVC last year, there were Beyel Brothers logos on the OTS in several locations, but I don't know if that was because they had purchased it or just because they were opperating it at the time.
It is sitting in a excess equipment yard right now
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#2891
by
DaveS
on 03 May, 2013 19:49
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Does the upper section of the aft compartment base heatshield have a different angle than the lower section where the left/right SSMEs go? Or is it uniform? The lower engines are installed at a different pitch (10° vs 16° for the center) than the center engine.
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#2892
by
DaveS
on 17 May, 2013 22:48
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I have come across quite a conundrum when it comes to the length of orbiter.
Going by the station numbers of the three major sections of the orbiter (forward, mid and aft including the vertical stabilizer) I get 119.5 ft for the length when all my sources states that the length of the orbiter measured from nose the vertical stabilizer is 122.2 ft. So that leaves 2.7 ft unaccounted for. Where could those be?
Here's the stations I used in the calculations:
Forward fuselage: XO236-XO582
Midbody: XO582-XO1307
Aft including the vertical stabilizer: XO1307-XO1693
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#2893
by
rayleighscatter
on 07 Jun, 2013 20:44
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Two questions:
Were the OMS/RCS pods used interchangeably through the orbiter fleet or did the same pods normally go up with the same orbiter?
When did the removal of the LRSI tiles take place?
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#2894
by
Jim
on 07 Jun, 2013 20:55
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Two questions:
Were the OMS/RCS pods used interchangeably through the orbiter fleet or did the same pods normally go up with the same orbiter?
When did the removal of the LRSI tiles take place?
They were interchanged.
LSRI tiles where? OMS pods OV-099. whole vehicle, OV-103
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#2895
by
rayleighscatter
on 07 Jun, 2013 22:29
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They were interchanged.
LSRI tiles where? OMS pods OV-099. whole vehicle, OV-103
So Columbia went through her whole career with the LRSI tiles?
I don't know where I got the impression that the orbiters came from Rockwell with the tiles and were refitted with blankets later on.
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#2896
by
psloss
on 07 Jun, 2013 22:48
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So Columbia went through her whole career with the LRSI tiles?
I don't know where I got the impression that the orbiters came from Rockwell with the tiles and were refitted with blankets later on.
OV-102 (only OV-102) did have a significant number replaced with blankets on the mid-fuselage sidewalls during the long stand-down after the 51-L accident. As Jim noted, beginning with OV-103 new vehicles were delivered from Palmdale with extensive use of blankets. IIRC, there's a contemporary video...let me see if I can find it on YouTube. (Edit: sorry, couldn't find it on YT...I think it was played on NASA TV back around the 25th anniversary of STS-1.)
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#2897
by
rayleighscatter
on 08 Jun, 2013 00:36
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Good to know I'm not completely crazy then
Thanks to both of you.
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#2898
by
spacecane
on 09 Jun, 2013 18:00
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What are the dimensions of the middeck (LxWxH)?
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#2899
by
brahmanknight
on 12 Jun, 2013 20:15
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For sts-71, the first docking to Mir, what were the reasons to dock with Spacelab instead of SPACEHAB?
