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#1940
by
Lee Jay
on 19 May, 2011 01:11
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#1941
by
david1971
on 21 May, 2011 00:20
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I live about 6 hours from Edwards. How far ahead of time do they decide where to land? In other words, do I have to out-guess the weather folks and already be on the road before they officially decide to switch from KSC to California?
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#1942
by
Jim
on 21 May, 2011 01:41
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I live about 6 hours from Edwards. How far ahead of time do they decide where to land? In other words, do I have to out-guess the weather folks and already be on the road before they officially decide to switch from KSC to California?
I could barely make it from LA if it was the SSME orbit
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#1943
by
Aobrien
on 21 May, 2011 02:47
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You would also have to account for a LOT of traffic if I had to guess if it moved to Edwards
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#1944
by
billshap
on 21 May, 2011 04:08
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Why did shuttle crews abandon wireless headsets for on-orbit comm? They were used many years ago, but disappeared by the midpoint of the program. With improvements in technology, wouldn't they be much better, much more comfortable, and most importantly, leave their hands free (other than a push-to-talk button)—not having to find/reach for the microphone or hold it while talking?
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#1945
by
Jim
on 21 May, 2011 11:52
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Why did shuttle crews abandon wireless headsets for on-orbit comm? They were used many years ago, but disappeared by the midpoint of the program. With improvements in technology, wouldn't they be much better, much more comfortable, and most importantly, leave their hands free (other than a push-to-talk button)—not having to find/reach for the microphone or hold it while talking?
battery management was a pain. Because it still needed push to talk, there was no issue with holding one. One microphone could be share vs many having headsets.
It was one of those cases were an idea didn't pan out.
Case in point, submariners don't use headsets.
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#1946
by
Mark Dave
on 22 May, 2011 13:21
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I saw on the astronaut Hall of Fame ceremony one of the crew told the story of how Discovery on 51-D did a flip when the crew tried to vent the leftover cryo from launch out of the T-0 umbilical. Discovery went into a nose down pitch as a result. How did that happen?
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#1947
by
subisnack
on 22 May, 2011 14:32
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#1948
by
Hungry4info3
on 22 May, 2011 18:09
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I noticed in the STS-134 RPM images that the front landing gear doors are asymmetric, with one door being smaller than the other. What is the reason for this?
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#1949
by
padrat
on 23 May, 2011 01:45
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One has an edge to fit over the other when closed.
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#1950
by
Hungry4info3
on 23 May, 2011 04:54
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I suspected that might be the case, but I dismissed it due to
this image. Maybe the view isn't very good?
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#1951
by
sitharus
on 23 May, 2011 05:11
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I suspected that might be the case, but I dismissed it due to this image. Maybe the view isn't very good?
Look closely at the shadows. On the right the black tiles overhang the white door, on the left it's reversed.
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#1952
by
Zpoxy
on 23 May, 2011 21:28
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I suspected that might be the case, but I dismissed it due to this image. Maybe the view isn't very good?
Padrat is correct. The overhanging door makes a more effective seal. The payload bay doors are built with the same principle in mind. The right door overlaps the left by almost 4 inches.
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#1953
by
DaveS
on 23 May, 2011 22:35
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I suspected that might be the case, but I dismissed it due to this image. Maybe the view isn't very good?
Padrat is correct. The overhanging door makes a more effective seal. The payload bay doors are built with the same principle in mind. The right door overlaps the left by almost 4 inches.
Speaking of the PLBDs: It's fairly well known during the SLC-6 on-pad trials with Enterprise the PLBDs blew open in the high winds and had to be secured using strings of some kind.
Was this ever a concern for Discovery or did Enterprise lack any of the PLBD latching systems(bulkhead/centerline) found on the operational orbiters?
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#1954
by
Lee Jay
on 23 May, 2011 22:48
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I suspected that might be the case, but I dismissed it due to this image. Maybe the view isn't very good?
Probably the same vehicle, from a slightly different angle. Perhaps this makes the situation clear.
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#1955
by
AnalogMan
on 24 May, 2011 00:26
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I suspected that might be the case, but I dismissed it due to this image. Maybe the view isn't very good?
Here's a yet another view from a different angle - this of Discovery on the runway at the end of the STS-133 mission. The overlap profiles are a little easier to see (click to enlarge).
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#1956
by
treddie
on 25 May, 2011 08:42
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Hey, this is a purely geeky question, but in ISS and Shuttle Mission Controls, you've probably noticed that everyone has a vertical orange-ish panel that sits off to either the far left or right of their particular stations. They appear to be dedicated touch screens with a bunch of buttons on it. Once in a very rare while, a controller will touch the screen. Does anyone know what these are?
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#1957
by
wjbarnett
on 25 May, 2011 11:29
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Hey, this is a purely geeky question, but in ISS and Shuttle Mission Controls, you've probably noticed that everyone has a vertical orange-ish panel that sits off to either the far left or right of their particular stations. They appear to be dedicated touch screens with a bunch of buttons on it. Once in a very rare while, a controller will touch the screen. Does anyone know what these are?
Answered a huge number of times in this and other threads. Nevertheless, those buttons select the various voice loops that the controller is listening to or able to speak into via their headset.
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#1958
by
Mark Dave
on 25 May, 2011 12:50
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I never noticed the overlap for the nose gear door. All the models of the shuttle have both doors the same size.
Speaking of which what is that hose connection port on the inside of the right nose gear door on Discovery? *points to above photo*
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#1959
by
JayP
on 25 May, 2011 17:47
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I never noticed the overlap for the nose gear door. All the models of the shuttle have both doors the same size.
Speaking of which what is that hose connection port on the inside of the right nose gear door on Discovery? *points to above photo*
That is the roller for the hook that holds the door closed. There is one at the front and rear ends of each NG door. The MLG doors each have 3 along the inboard edge.