There's no concern of an Orbiter getting rained on while on the SLF/at the MDD. STS-117/Atlantis got a pretty good soaking after her return to KSC on the SCA. They simply dried out her blankets and tiles once she was back in OPF-1.
1) How long does that take, though? 2) Would there be a call for some sort of covering device?3) Not that matters in this late stage in the program, of course, but was it ever a concern in the past before they realised it wasn't a big deal?
Hello!I'd like to know what are temperatures on that altitude the space shuttle fly?Thanks
2) Why would there need to be a covering device when it's no problem if the vehicle gets rained on while at Dryden/on the SLF/at the MDD.
Surely there'd be a breakpoint where you decide "Yeah, actually it is worth it..."
Quote from: ChrisGebhardt on 09/21/2009 07:47 pm2) Why would there need to be a covering device when it's no problem if the vehicle gets rained on while at Dryden/on the SLF/at the MDD.I was trying to determine how much of a "non problem" it was - like, how much time it takes to dry out the blankets and tiles vs the cost and effort of covering everything.Surely there'd be a breakpoint where you decide "Yeah, actually it is worth it..."
During STS-128's approach to Edwards, I recall Rob Navias commented that the twin sonic booms herald the shuttle's approach as it passes through the sound barrier. I always thought the sonic shock wave is continuous throughout supersonic flight, not just at the mach 1 transition. I guess it's not surprising for a non-technical person to get this wrong, but in the STS-127 crew presentation airing today on NTV, Chris Cassidy made the following comment during the landing replay "...as we come through mach 1, if you've been there, you can hear the two sonic booms."Now I'm wondering... do I have it wrong?
I'd like to know what are temperatures on that altitude the space shuttle fly?
Appears at liftoff, according to Ascent Guidance workbook. I imagine as guidance converges the prediction changes.
Quote from: elmarko on 09/23/2009 02:53 pmAppears at liftoff, according to Ascent Guidance workbook. I imagine as guidance converges the prediction changes.So thats the question really...it appears at liftoff, but does it display XX:XX...crazy values, too high values, too low values...and then once into MM103 settles down into a good value?
Quote from: kneecaps on 09/23/2009 02:58 pmQuote from: elmarko on 09/23/2009 02:53 pmAppears at liftoff, according to Ascent Guidance workbook. I imagine as guidance converges the prediction changes.So thats the question really...it appears at liftoff, but does it display XX:XX...crazy values, too high values, too low values...and then once into MM103 settles down into a good value? I imagine it has some sort of I-loaded value at liftoff, and then it doesn't change during 1st stage (because it's open loop, so there's no inputs from the system), and then during the cycles of convergence they change.Whether that means going lower or higher would depend on the initial value, obviously.Any insight from Jorge/Mkirk?