![]() |
|
|
|
Thread Tools | Display Modes |
#1
|
|||
|
|||
![]()
I count 43 men who flew on Mercury through Apollo-Soyuz, of whom ten are
dead (Shepard, Grissom, White, Conrad, Eisele,Swigert, Roosa, Irwin, Evans, and Slayton) -- anybody get a different number to correct me? Has to do with a news story about to appear on msnbc.com's sci-tecg site. Thanks! |
#2
|
|||
|
|||
![]()
Honorees will be through Apollo-17, or 34 men, of whom 25 are alive.
"Jim Oberg" wrote in message ... I count 43 men who flew on Mercury through Apollo-Soyuz, of whom ten are dead (Shepard, Grissom, White, Conrad, Eisele,Swigert, Roosa, Irwin, Evans, and Slayton) -- anybody get a different number to correct me? Has to do with a news story about to appear on msnbc.com's sci-tecg site. Thanks! |
#3
|
|||
|
|||
![]()
In article ,
Jim Oberg wrote: I count 43 men who flew on Mercury through Apollo-Soyuz, of whom ten are dead (Shepard, Grissom, White, Conrad, Eisele,Swigert, Roosa, Irwin, Evans, and Slayton)... An interesting thought occurred to me while looking at this list... Is Scaled Composites's Mike Melvill currently the only man alive who has flown a suborbital spaceflight? (That is, to have reached 100km without going on to orbit?) Shepard and Grissom, who flew the suborbital Mercury flights, are dead. So is Joe Walker, the only X-15 pilot to reach 100km. The Russians didn't do manned suborbital flights as a preliminary to their orbital flights, and apparently neither did the Chinese. The US has never had a suborbital abort. The one thing I'm not sure about is whether Lazarev and Makarov, the crew of the April 1975 suborbital Soyuz abort, are still alive. -- "Think outside the box -- the box isn't our friend." | Henry Spencer -- George Herbert | |
#4
|
|||
|
|||
![]()
The one thing I'm not sure about is whether Lazarev and Makarov,
the crew of the April 1975 suborbital Soyuz abort, are still alive. Lazarev died in 1990, Makarov more recently. Michael Cassutt |
#5
|
|||
|
|||
![]()
On Fri, 16 Jul 2004 19:59:33 +0000, Jim Oberg wrote:
I count 43 men who flew on Mercury through Apollo-Soyuz, of whom ten are dead (Shepard, Grissom, White, Conrad, Eisele,Swigert, Roosa, Irwin, Evans, and Slayton) -- anybody get a different number to correct me? Has to do with a news story about to appear on msnbc.com's sci-tecg site. Thanks! After reading your post "Astronauts, Cronkite to get moon rock plaques", I set about trying to remember all the names myself. I too have counted 43 up to 1975 but cannot remember the name of one of the rookies on Skylab. I know I can look it up and am certianly not asking, but want to recall it myself. Very sad I know, I hope I can remember it before it really bugs me. -- +--+--+--+--+--+--+--+--+--+--+--+ | Dave Downing, Somerset U.K. | +--+--+--+--+--+--+--+--+--+--+--+ |
#6
|
|||
|
|||
![]() |
#7
|
|||
|
|||
![]()
In article ,
Rusty Barton wrote: (That is, to have reached 100km without going on to orbit?) If Apollo 13 had not gone into a parking orbit first, could it have been considered a sub-orbital flight? *Probably* not. Its initial lunar trajectory was an Earth orbit with a very high apogee and a perigee that was *probably* above the atmosphere, so it was a proper orbit. There would be some room for debate about the details, though, were the matter not settled by starting from a parking orbit. -- "Think outside the box -- the box isn't our friend." | Henry Spencer -- George Herbert | |
#9
|
|||
|
|||
![]()
Rusty Barton wrote in
: On Fri, 16 Jul 2004 22:37:51 GMT, (Henry Spencer) wrote: In article , Jim Oberg wrote: I count 43 men who flew on Mercury through Apollo-Soyuz, of whom ten are dead (Shepard, Grissom, White, Conrad, Eisele,Swigert, Roosa, Irwin, Evans, and Slayton)... An interesting thought occurred to me while looking at this list... Is Scaled Composites's Mike Melvill currently the only man alive who has flown a suborbital spaceflight? (That is, to have reached 100km without going on to orbit?) Shepard and Grissom, who flew the suborbital Mercury flights, are dead. So is Joe Walker, the only X-15 pilot to reach 100km. The Russians didn't do manned suborbital flights as a preliminary to their orbital flights, and apparently neither did the Chinese. The US has never had a suborbital abort. The one thing I'm not sure about is whether Lazarev and Makarov, the crew of the April 1975 suborbital Soyuz abort, are still alive. If Apollo 13 had not gone into a parking orbit first, could it have been considered a sub-orbital flight? It could have been considered a suborbital flight if it had stayed on a free-return trajectory throughout, but it did not: http://science.ksc.nasa.gov/history/...apollo-13.html "Before the explosion, at 30 hours and 40 minutes, Apollo 13 had made the normal midcourse correction, which would take it out of a free-return-to- Earth trajectory and put it on a lunar landing course. Now the task was to get back on a free-return course. The ground computed a 35-second burn and fired it 5 hours after the explosion." Of course, all this hinges on how "suborbital trajectory" is defined. Here is the FAA definition: http://ast.faa.gov/files/pdf/FAA_Sub...efinitions.pdf "The FAA regards a suborbital trajectory as the intentional flight path of a launch vehicle, reentry vehicle, or any portion thereof, whose vacuum instantaneous impact point (IIP) does not leave the surface of the Earth. The IIP of a launch vehicle is the projected impact point on Earth where the vehicle would land if its engines stop or where vehicle debris, in the event of failure and break-up, would land. The notion of a ‘‘vacuum’’ IIP reflects the absence of atmospheric effects in performing the IIP calculation. If the vacuum IIP never leaves the Earth’s surface, the vehicle would not achieve Earth orbit and would therefore be on a suborbital trajectory." Under this definition, a free-return lunar trajectory would qualify, but I'm not sure it's possible to boost *into* a free-return trajectory without the vacuum IIP intersecting the moon, at least briefly, near the end of the burn. -- JRF Reply-to address spam-proofed - to reply by E-mail, check "Organization" (I am not assimilated) and think one step ahead of IBM. |
#10
|
|||
|
|||
![]()
In message , Rusty Barton
writes On Fri, 16 Jul 2004 22:37:51 GMT, (Henry Spencer) wrote: In article , Jim Oberg wrote: I count 43 men who flew on Mercury through Apollo-Soyuz, of whom ten are dead (Shepard, Grissom, White, Conrad, Eisele,Swigert, Roosa, Irwin, Evans, and Slayton)... An interesting thought occurred to me while looking at this list... Is Scaled Composites's Mike Melvill currently the only man alive who has flown a suborbital spaceflight? (That is, to have reached 100km without going on to orbit?) Shepard and Grissom, who flew the suborbital Mercury flights, are dead. So is Joe Walker, the only X-15 pilot to reach 100km. The Russians didn't do manned suborbital flights as a preliminary to their orbital flights, and apparently neither did the Chinese. The US has never had a suborbital abort. The one thing I'm not sure about is whether Lazarev and Makarov, the crew of the April 1975 suborbital Soyuz abort, are still alive. If Apollo 13 had not gone into a parking orbit first, could it have been considered a sub-orbital flight? It nearly did so when the Saturn V engine went into POGO (assuming they got out) -- What have they got to hide? Release the full Beagle 2 report. Remove spam and invalid from address to reply. |
|
Thread Tools | |
Display Modes | |
|
|
![]() |
||||
Thread | Thread Starter | Forum | Replies | Last Post |
Dear, respected corporate employees, veterans, our colleagues, friends and like-minded persons! | Jacques van Oene | Space Shuttle | 1 | April 14th 04 01:13 AM |
Dear, respected corporate employees, veterans, our colleagues, friends and like-minded persons! | Jacques van Oene | Space Station | 1 | April 14th 04 01:13 AM |
Dear, respected corporate employees, veterans, our colleagues, friends and like-minded persons! | Jacques van Oene | History | 3 | April 14th 04 01:13 AM |
Electric Gravity&Instantaneous Light | ralph sansbury | Astronomy Misc | 8 | August 31st 03 02:53 AM |
Star count: Australian National U. astronomer makes best yet (Forwarded) | Andrew Yee | Astronomy Misc | 2 | July 17th 03 11:04 PM |