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#1860
by
kch
on 07 May, 2009 20:04
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It has been quite a while since I have been in an orbiter or the SMS (shutte mission simulator) but I think the wiper blade control was an adjustable switch located on the same arm as the turn signal controller...of course I might be mis-remembering... 
Mark Kirkman
Reminds me of Ted Striker:
Lets see...Altitude, 24,000 feet...level flight, speed 520 knots. Course, 0-9er-0...trim, mixture...wash, soak, rinse, spin...
(Reference.)
"Irony can be pretty ironic sometimes ..."
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#1861
by
agman25
on 07 May, 2009 20:14
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This is a completely hypothetical question, since I am getting nowhere near one, but, If I managed to sneak inside an MPLM will I make it to the ISS alive.
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#1862
by
Jim
on 07 May, 2009 20:18
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This is a completely hypothetical question, since I am getting nowhere near one, but, If I managed to sneak inside an MPLM will I make it to the ISS alive.
Depends on when you get in, just like any confined space
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#1863
by
MKremer
on 07 May, 2009 20:23
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This is a completely hypothetical question, since I am getting nowhere near one, but, If I managed to sneak inside an MPLM will I make it to the ISS alive.
As long as you don't mind being battered and bruised with not much hearing left once you hit zero-G.
Not to mention you'll put everyone else at risk because of the extra limited consumables (O2, water, food, CO2 removal) you'd be depriving the planned # of people the logistics were designed for to complete the planned mission and any emergency contingencies.
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#1864
by
Jorge
on 07 May, 2009 20:31
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High inclination, direct injection, no OMS-1 puts the ET into the Pacific, right? Indian Ocean was earlier in the program.
Correct. Indian Ocean was for Standard Insertion. The last Standard Insertion was STS-30 in 1989.
Direct Insertion always puts the ET in the Pacific, regardless of inclination.
Back to the original question, some of the heavier ET debris (SRB thrust beam, possibly the MPS disconnects) is expected to survive to ocean impact.
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#1865
by
engineerjl
on 08 May, 2009 06:00
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hypothetical case A: If via a freak accident the Shuttle lost it's entire vertical stabilizer (tail) in orbit, could the RCS/OMS provide the necessary yaw control to get back to earth? Assume the payload bay is empty and fuel is not an issue.
Case B: Same as above but the Shuttle goes on a diet and loses 50,000 pounds. Could the RCS/OMS do it now?
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#1866
by
Danny Dot
on 08 May, 2009 11:45
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hypothetical case A: If via a freak accident the Shuttle lost it's entire vertical stabilizer (tail) in orbit, could the RCS/OMS provide the necessary yaw control to get back to earth? Assume the payload bay is empty and fuel is not an issue.
Case B: Same as above but the Shuttle goes on a diet and loses 50,000 pounds. Could the RCS/OMS do it now?
The RCS is turned off at Mach 1. IIRC lower than this the thrusters can't be fired because of atmospheric pressure. As a minimum, a major, major software update would be needed.
Danny Deger
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#1867
by
Danny Dot
on 08 May, 2009 11:47
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This is a completely hypothetical question, since I am getting nowhere near one, but, If I managed to sneak inside an MPLM will I make it to the ISS alive.
As long as you don't mind being battered and bruised with not much hearing left once you hit zero-G.
Not to mention you'll put everyone else at risk because of the extra limited consumables (O2, water, food, CO2 removal) you'd be depriving the planned # of people the logistics were designed for to complete the planned mission and any emergency contingencies.
You would make it to the ISS, but then be beaten to death by some really frakked off astronauts
Danny Deger
Edit: No they wouldn't want all the blood floating around the cabin. They would put you in the air lock and open the outside hatch.
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#1868
by
Jim
on 08 May, 2009 12:51
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hypothetical case A: If via a freak accident the Shuttle lost it's entire vertical stabilizer (tail) in orbit, could the RCS/OMS provide the necessary yaw control to get back to earth? Assume the payload bay is empty and fuel is not an issue.
Case B: Same as above but the Shuttle goes on a diet and loses 50,000 pounds. Could the RCS/OMS do it now?
no in any case. No yaw control and no speed brake
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#1869
by
Spacenick
on 08 May, 2009 19:19
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would it be possible to get low enough and slow enough without the stabilizer to bail out?
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#1870
by
Danny Dot
on 08 May, 2009 20:33
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would it be possible to get low enough and slow enough without the stabilizer to bail out?
Maybe with massive changes to the autopilot to do the job. You would also need LOTS of aft RCS prop.
Interesting idea.
Danny Deger
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#1871
by
shuttlefan
on 09 May, 2009 12:51
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I'm wondering if anyone, such as Pad-Rat, has any pics. that were taken by someone under the main engine nozzles during stable-replenish, with the excess LH2/LO2, coming out of the engines. Those sites are fascinating! Also is the 'hissing' loud anough to damage hearing?
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#1872
by
Jim
on 09 May, 2009 13:37
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I'm wondering if anyone, such as Pad-Rat, has any pics. that were taken by someone under the main engine nozzles during stable-replenish, with the excess LH2/LO2, coming out of the engines.
There is no way to go under them, there is a flame trench. Also if there was, it would be hazardous since LO2 could drip on you
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#1873
by
psloss
on 09 May, 2009 14:00
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I'm wondering if anyone, such as Pad-Rat, has any pics. that were taken by someone under the main engine nozzles during stable-replenish, with the excess LH2/LO2, coming out of the engines. Those sites are fascinating! Also is the 'hissing' loud anough to damage hearing?
There are some pictures taken "manually" from the final inspection team on the MLP deck in the latest edition of Jenkins, but not from directly "under."
Another nit: no excess LH2 coming out of the engines on purpose. (If there was, that would cause a scrub.) There's excess H2 during the start sequence, but the boattail area is not a safe place for a person to be then.
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#1874
by
TJL
on 10 May, 2009 22:43
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On a shuttle mission that is launched to ISS (51.6 degrees), whats the furthest distance up the coast that the shuttle could perform an RTLS maneuver?
Thanks.
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#1875
by
psloss
on 10 May, 2009 23:42
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On a shuttle mission that is launched to ISS (51.6 degrees), whats the furthest distance up the coast that the shuttle could perform an RTLS maneuver?
Thanks.
Distance is likely in the same ballpark as most shuttle launches regardless of inclination...you could look at the ascent data that Bill Harwood has posted for range at Negative Return:
http://www.cbsnews.com/network/news/space/125/125ascentdata.html(But then most missions have TAL capability at Negative Return, so I guess it depends on whether you mean theoretical vs. in practice.)
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#1876
by
Jorge
on 11 May, 2009 03:23
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On a shuttle mission that is launched to ISS (51.6 degrees), whats the furthest distance up the coast that the shuttle could perform an RTLS maneuver?
Thanks.
Distance is likely in the same ballpark as most shuttle launches regardless of inclination...you could look at the ascent data that Bill Harwood has posted for range at Negative Return:
http://www.cbsnews.com/network/news/space/125/125ascentdata.html
(But then most missions have TAL capability at Negative Return, so I guess it depends on whether you mean theoretical vs. in practice.)
Depends on what caused the abort as well. For performance cases (i.e. engine out), TAL is always preferred over RTLS, if available. For systems cases (e.g. cabin leak), time to the ground is more important, so RTLS would be preferred over TAL all the way to Negative Return.
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#1877
by
oxford750
on 11 May, 2009 04:35
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Hi folks:
I was looking at the photos Chris Gebhardt took at sts-125 open House pics.
I noticed that there are "YELLOW" bars on the payload Bay doors ( they are probably used to assist with opening those doors when a payload needs to go in at the pad).
1) My question is: How are those bars attached, as the payload bay doors are "covered" with a blanket as part of the protection for the heat of re-entry?
also
2) How is the orbiter secured to the crane (in the VAB) to make sure it does not fall during the "flip" and while it it is being attached to the ET?
Thanks
Oxford750
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#1878
by
elmarko
on 11 May, 2009 08:38
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I'll ask this here because I didn't know where else to put it.
Will 125 have any helmet camera support, or is there no WVS provision when not docked to the ISS?
If there isn't, I presume the live Ku video will be from the payload bay and inside the crew cabin.
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#1879
by
elmarko
on 11 May, 2009 08:47
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And another one.
They made such a big deal about using the remote-control capability for damaged orbiters. Now they talk about ditching a shuttle with a controlled reentry instead.
Is the option to try a remote landing at White Sands still an option?
