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#1100
by
usn_skwerl
on 13 Oct, 2007 06:29
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oh, awesome! thanks much, Jorge!! that's exactly what I've been looking for for years. I photocopied a picture from a library book, in like 5th or 6th grade, and a guy drew and colored it in with pen and sharpie marker in school (without my consent). I got mad, crumbled it up, took it home and tried to fix it, made it worse, and finally finished re-editing it on my pc just the other day.
(heres my before and after)
before and afterthe link you provided me will help me make sure my angles, datum, etc. are accurate. again, thanks so much!
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#1101
by
TJL
on 13 Oct, 2007 19:12
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I noticed that some (veteran) shuttle astronauts have updated portraits taken with their latest shuttle emblems on their suit while others do not.
Is it the individuals choice wether or not to take a new photo?
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#1102
by
kimmern123
on 13 Oct, 2007 19:53
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With the STS-122 crew I've noticed that the astronauts that've updated their portraits are the ones that haven't taken a portrait in the launch and entry-suit before. Steve Frick updated his portrait from the old blue flighsuit one, while Rex Walheim, for instance, who already took his OSS-portrait before STS-110 did not get a new portrait.
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#1103
by
mkirk
on 13 Oct, 2007 23:22
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DaveS - 12/10/2007 11:41 AM
Joffan - 12/10/2007 6:37 PM
Follow-up question... is there such a thing as a coldfire test? And would that be without propellants loaded, just testing valve actuation, or perhaps with an inert pressurised gas also testing flow?
RCS hotfire tests are only done on-orbit on the day prior to planned de-orbit and landing.
Interestingly, or perhaps not, depending on your point of view, previous manned spacecraft such as Gemini would perform an RCS Hot Fire Test late in the pre launch countdown after the crew was strapped in and the erecter had been retracted.
Mark Kirkman
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#1104
by
HIPAR
on 14 Oct, 2007 00:53
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What would be required to send a space shuttle to the moon? With that huge payload bay, a substantial lander or cargo could be carried there.
Obviously, an additional boost is required to leave earth orbit. Might a rocket be attached while the shuttle is in LOE? Can the retro engines place the shuttle into lunar orbit and be fired again to leave lunar orbit? Finally, might some sort of aerobraking be employed to slow the shuttle upon return to the earth atmosphere?
--- CHAS
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#1105
by
Lee Jay
on 14 Oct, 2007 01:56
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HIPAR - 13/10/2007 6:53 PM
What would be required to send a space shuttle to the moon?
Probably hallucinogenic substances.
With that huge payload bay, a substantial lander or cargo could be carried there.
Not really.
Obviously, an additional boost is required to leave earth orbit. Might a rocket be attached while the shuttle is in LOE?
And where would that come from, and how would it be attached?
Can the retro engines place the shuttle into lunar orbit and be fired again to leave lunar orbit?
Not even close.
Finally, might some sort of aerobraking be employed to slow the shuttle upon return to the earth atmosphere?
Not and have the craft survive.
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#1106
by
Namechange User
on 14 Oct, 2007 02:25
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HIPAR - 13/10/2007 7:53 PM
What would be required to send a space shuttle to the moon? With that huge payload bay, a substantial lander or cargo could be carried there.
Obviously, an additional boost is required to leave earth orbit. Might a rocket be attached while the shuttle is in LOE? Can the retro engines place the shuttle into lunar orbit and be fired again to leave lunar orbit? Finally, might some sort of aerobraking be employed to slow the shuttle upon return to the earth atmosphere?
--- CHAS
This question has been asked many times and there are some folks out there that actually believe the shuttle goes to the moon. Unfortunately that is not the case and never will be.
First, beyond all the other technical issues, upon rentry to Earths atmosphere the orbiter would break up. The TPS nor the structure is designed to carry those loads. The OME's (orbital maneuvering engines) produce 6K thrust each. While this could do the job if fired long enough the problem of course is the amount of prop available. There is simply not enough room in the tanks for anywhere near this kind of job with the mass of the orbiter.
The orbiter just was never designed for this kind of mission and to try to make it into that would be problematic, expensive and disaterous.
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#1107
by
Endeavour118
on 14 Oct, 2007 03:22
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2 questions:
1. what does take air data mean
2. when they show the ascent flight control video at about t-11 seconds what do they mean all vents open
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#1108
by
Lee Jay
on 14 Oct, 2007 03:53
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Endeavour118 - 13/10/2007 9:22 PM
2 questions:
1. what does take air data mean
http://spaceflight.nasa.gov/shuttle/reference/shutref/orbiter/avionics/gnc/ads.html2. when they show the ascent flight control video at about t-11 seconds what do they mean all vents open
I'm not positive about this one. The shuttle is pretty much sealed and, of course, full of air when it's on the ground. During ascent, it's going to very quickly get to a pretty effective vacuum (like in less than 2 minutes). It needs to vent the air inside so it doesn't damage the structure trying to get out (overpressure). The same is true on decent, but in reverse (vacuum, air pressure, crush...). It has vents for this purpose, but I'm not certain that this call is referring to those.
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#1109
by
Danny Dot
on 14 Oct, 2007 06:33
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Endeavour118 - 13/10/2007 10:22 PM
2 questions:
1. what does take air data mean
After the airdata probes are deployed during an entry, the crew and the flight controllers look over the data before the data is used by flight software. "Take air data" lets the crew know the ground approves of the data and the crew then tell the computers to start using the air data. This action is done by typing on the computer's key board.
Danny Deger
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#1110
by
usn_skwerl
on 14 Oct, 2007 08:29
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i know the moon trip with an orbiter is a dead horse, but im just gonna kick it in the hoof once....
TPS and airframe cant handle reentry. is aerobraking impossible with the orbiter? im assuming it is, considering how deep it would have to get into the atmosphere enough to drop below escape velocity, otherwise it'd skip off and go right back up. is this a correct assumption?
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#1111
by
DaveS
on 14 Oct, 2007 08:53
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usn_skwerl - 14/10/2007 10:29 AM
i know the moon trip with an orbiter is a dead horse, but im just gonna kick it in the hoof once....
TPS and airframe cant handle reentry. is aerobraking impossible with the orbiter? im assuming it is, considering how deep it would have to get into the atmosphere enough to drop below escape velocity, otherwise it'd skip off and go right back up. is this a correct assumption?
Totally impossible. The orbiter wasn't designed to handle entry speeds more than 9 km/s. Lunar entry speeds are in excess of 10 km/s.
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#1112
by
ShuttleDiscovery
on 14 Oct, 2007 11:20
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kimmern123 - 13/10/2007 8:53 PM
With the STS-122 crew I've noticed that the astronauts that've updated their portraits are the ones that haven't taken a portrait in the launch and entry-suit before. Steve Frick updated his portrait from the old blue flighsuit one, while Rex Walheim, for instance, who already took his OSS-portrait before STS-110 did not get a new portrait.
Well Stefanie Wilson for STS-120 has not a portrait in a launch and entry suit at all that I know of, just the blue flighht suit one from when she was selected...
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#1113
by
TJL
on 14 Oct, 2007 14:48
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ShuttleDiscovery - 14/10/2007 7:20 AM
kimmern123 - 13/10/2007 8:53 PM
With the STS-122 crew I've noticed that the astronauts that've updated their portraits are the ones that haven't taken a portrait in the launch and entry-suit before. Steve Frick updated his portrait from the old blue flighsuit one, while Rex Walheim, for instance, who already took his OSS-portrait before STS-110 did not get a new portrait.
Well Stefanie Wilson for STS-120 has not a portrait in a launch and entry suit at all that I know of, just the blue flighht suit one from when she was selected...
...as does STS-117 CDR Rick Sturckow.
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#1114
by
mkirk
on 14 Oct, 2007 15:41
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Lee Jay - 13/10/2007 10:53 PM
Endeavour118 - 13/10/2007 9:22 PM
2 questions:
1. what does take air data mean
http://spaceflight.nasa.gov/shuttle/reference/shutref/orbiter/avionics/gnc/ads.html
2. when they show the ascent flight control video at about t-11 seconds what do they mean all vents open
I'm not positive about this one. The shuttle is pretty much sealed and, of course, full of air when it's on the ground. During ascent, it's going to very quickly get to a pretty effective vacuum (like in less than 2 minutes). It needs to vent the air inside so it doesn't damage the structure trying to get out (overpressure). The same is true on decent, but in reverse (vacuum, air pressure, crush...). It has vents for this purpose, but I'm not certain that this call is referring to those.
“All Vents Open” is a MMACS (mechanical, maintenance, arem and crew systems) console call out at about T-11 seconds. MMACS is acknowledging that the Vent Door Open Sequence is complete. If I recall correctly the Open Sequence begins at T-28 seconds. Prior to this point the doors are in the purge position. When the sequence starts the doors are staggered open in 2.5 second intervals, MMACS checks to see that the sequence is complete and that all the vents are open at T-11 seconds.
Mark Kirkman
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#1115
by
kimmern123
on 14 Oct, 2007 16:38
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TJL - 14/10/2007 4:48 PM
ShuttleDiscovery - 14/10/2007 7:20 AM
kimmern123 - 13/10/2007 8:53 PM
With the STS-122 crew I've noticed that the astronauts that've updated their portraits are the ones that haven't taken a portrait in the launch and entry-suit before. Steve Frick updated his portrait from the old blue flighsuit one, while Rex Walheim, for instance, who already took his OSS-portrait before STS-110 did not get a new portrait.
Well Stefanie Wilson for STS-120 has not a portrait in a launch and entry suit at all that I know of, just the blue flighht suit one from when she was selected...
...as does STS-117 CDR Rick Sturckow.
I'm also guessing it's based on the astronauts' preferences as well. Some may just not see the need for a new portrait after the blue flight suit one.
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#1116
by
The-Hammer
on 15 Oct, 2007 10:32
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I have a question regarding STS-115 and 117. The wikipedia article on STS-115 states that the crew was limited to 6 because of the mass of the P3/P4 Truss Segment. (One of the links is to a NASA podcast that backs up this claim.) However, STS-117, which carried the S3/S4 Truss Segment, was able to carry 7 astronauts. Both missions used Atlantis.
Why was STS-117 able to carry 7 when STS-115 could only carry 6? Did 115 have more cargo beyond the Truss Segment than did 117? Was NASA being conservative in regards to launch mass with 115? Something else entirely?
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#1117
by
Jorge
on 15 Oct, 2007 10:55
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The-Hammer - 15/10/2007 5:32 AM
I have a question regarding STS-115 and 117. The wikipedia article on STS-115 states that the crew was limited to 6 because of the mass of the P3/P4 Truss Segment. (One of the links is to a NASA podcast that backs up this claim.) However, STS-117, which carried the S3/S4 Truss Segment, was able to carry 7 astronauts. Both missions used Atlantis.
Why was STS-117 able to carry 7 when STS-115 could only carry 6? Did 115 have more cargo beyond the Truss Segment than did 117? Was NASA being conservative in regards to launch mass with 115? Something else entirely?
NASA had to offload about 400 lbs of middeck cargo from 117 to accommodate the seventh crewmember.
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#1118
by
DaveS
on 15 Oct, 2007 10:58
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Jorge - 15/10/2007 12:55 PM
The-Hammer - 15/10/2007 5:32 AM
I have a question regarding STS-115 and 117. The wikipedia article on STS-115 states that the crew was limited to 6 because of the mass of the P3/P4 Truss Segment. (One of the links is to a NASA podcast that backs up this claim.) However, STS-117, which carried the S3/S4 Truss Segment, was able to carry 7 astronauts. Both missions used Atlantis.
Why was STS-117 able to carry 7 when STS-115 could only carry 6? Did 115 have more cargo beyond the Truss Segment than did 117? Was NASA being conservative in regards to launch mass with 115? Something else entirely?
NASA had to offload about 400 lbs of middeck cargo from 117 to accommodate the seventh crewmember.
Also, STS-117 was a 6-member crew flight. The addition of Clay Anderson was a late addition made when Atlantis was in the VAB for ET hail repairs. If STS-117 had launched in March as originally planned, Clay Anderson would have flown up on STS-118 as originally planned.
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#1119
by
Endeavour118
on 16 Oct, 2007 01:22
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TJL - 14/10/2007 10:48 AM
ShuttleDiscovery - 14/10/2007 7:20 AM
kimmern123 - 13/10/2007 8:53 PM
With the STS-122 crew I've noticed that the astronauts that've updated their portraits are the ones that haven't taken a portrait in the launch and entry-suit before. Steve Frick updated his portrait from the old blue flighsuit one, while Rex Walheim, for instance, who already took his OSS-portrait before STS-110 did not get a new portrait.
Well Stefanie Wilson for STS-120 has not a portrait in a launch and entry suit at all that I know of, just the blue flighht suit one from when she was selected...
...as does STS-117 CDR Rick Sturckow.
same with sts-110 CDR mike bloomfield