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Apollo 10 LM gyrations
When the Apollo 10 LM went into gyrations, I later heard that if the
gyrations had continued for 11 seconds more (or something like that), it would have crashed onto the moon. Is that right? --- Replace you know what by j to email |
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Jud McCranie wrote in message . ..
When the Apollo 10 LM went into gyrations, I later heard that if the gyrations had continued for 11 seconds more (or something like that), it would have crashed onto the moon. Is that right? --- Replace you know what by j to email Yes you are correct, it would definitely have crashed into the moon, although the exact time is uncertain. B.Alm |
#3
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In article ,
"Bad Weather" wrote: (snipped trolling nonsense) Teenagers shouldn't be allowed to access Usenet . . . :-/ PLONK -- Herb Schaltegger, B.S., J.D. "Never underestimate the power of human stupidity." ~ Robert A. Heinlein http://www.angryherb.net |
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the gyrations were caused by astronaut sex in the lunar module
"Jud McCranie" wrote in message ... When the Apollo 10 LM went into gyrations, I later heard that if the gyrations had continued for 11 seconds more (or something like that), it would have crashed onto the moon. Is that right? --- Replace you know what by j to email |
#5
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Jud McCranie wrote in message . ..
When the Apollo 10 LM went into gyrations, I later heard that if the gyrations had continued for 11 seconds more (or something like that), it would have crashed onto the moon. Is that right? --- According to "Apollo by the Numbers" by Richard Orloff http://history.nasa.gov/SP-4029/Apollo_00a_Cover.htm http://history.nasa.gov/SP-4029/Apollo_10a_Summary.htm The LM was at an altitude of 30 nautical miles above the moon when the 8-seconds of gyrations started. The low point of that orbit was 12.1 nautical miles. They were not on a path that was headed straight downward, they were still in orbit. I don't think they were in immediate danger of crashing. Here's the story as Orloff tells it. "...The second LM maneuver, a 39.95-second descent propulsion system phasing burn at 100:58:25.93, established a lead angle equivalent to that which would occur at powered ascent cutoff during a lunar landing, and put the LM into an orbit of 190.1 by 12.1 n mi. At 102:44:49, during preparations for rendezvous with the CSM, the LM started to wallow off slowly in yaw, and then stopped. At 102:45:12, it started a rapid roll accompanied by small pitch and yaw rates. The ascent stage was then separated from the descent stage at 102:45:16.9 at an altitude of 31.4 n mi and the motion was stopped eight seconds later. A 15.55-second firing of the ascent engine at 102:55:02.13 placed the ascent stage into an orbit of 46.5 by 11.0 n mi. The descent stage went into lunar orbit. Analysis revealed that the cause of the anomalous motion was human error. Inadvertently, the control mode of the LM abort guidance system was returned to AUTO rather than being left in the ATTITUDE HOLD mode for staging. In AUTO, the abort guidance system drove the LM to acquire the CSM which was not in accordance with the planned attitude timeline. The commander took over manual control to reestablish the proper attitude...." - Rusty Barton |
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In message , Rusty B
writes Jud McCranie wrote in message ... When the Apollo 10 LM went into gyrations, I later heard that if the gyrations had continued for 11 seconds more (or something like that), it would have crashed onto the moon. Is that right? --- According to "Apollo by the Numbers" by Richard Orloff http://history.nasa.gov/SP-4029/Apollo_00a_Cover.htm http://history.nasa.gov/SP-4029/Apollo_10a_Summary.htm The LM was at an altitude of 30 nautical miles above the moon when the 8-seconds of gyrations started. The low point of that orbit was 12.1 nautical miles. They were not on a path that was headed straight downward, they were still in orbit. I don't think they were in immediate danger of crashing. Here's the story as Orloff tells it. There's a rather more dramatic description in Tim Furniss's "Manned Spaceflight Log" but I don't know if it's authentic. 'Cernan obviously thought the craft was going to crash. "I'll tell you, there was a moment there, Tom" The shaken astronaut didn't continue, but everyone knew what he meant. Turning his attention to the pending engine burn, he said "Let's worry about it when we make this burn... OK, Charlie, I think we got all our marbles... We're sure coming down to that ground, I'll tell you..." ' I'm reminded of M R James's comment "Dots are believed to be a good substitute for effective writing. They are certainly an easy one. Let us have a few more...", but is there a set of transcripts of the orbital flights, like the Apollo Lunar Surface Journal? |
#7
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On Mon, 23 Aug 2004 21:43:10 +0100, Jonathan Silverlight
wrote: There's a rather more dramatic description in Tim Furniss's "Manned Spaceflight Log" but I don't know if it's authentic. 'Cernan obviously thought the craft was going to crash. "I'll tell you, there was a moment there, Tom" I think he also said "G*ddamn it" and "Son of a b*tch". --- Replace you know what by j to email |
#8
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In message , Jud McCranie
writes On Mon, 23 Aug 2004 21:43:10 +0100, Jonathan Silverlight wrote: There's a rather more dramatic description in Tim Furniss's "Manned Spaceflight Log" but I don't know if it's authentic. 'Cernan obviously thought the craft was going to crash. "I'll tell you, there was a moment there, Tom" I think he also said "G*ddamn it" and "Son of a b*tch". The second one is in the book, but not the first. I was saving bandwidth :-) |
#9
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On Mon, 23 Aug 2004 22:33:04 +0100, Jonathan Silverlight
wrote: I think he also said "G*ddamn it" and "Son of a b*tch". The second one is in the book, but not the first. I was saving bandwidth I was just going by memory, which may be wrong. I heard it in 69, and there was some controversy of it being broadcast on the networks. --- Replace you know what by j to email |
#10
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On Mon, 23 Aug 2004 21:43:10 +0100, Jonathan Silverlight
wrote: is there a set of transcripts of the orbital flights, like the Apollo Lunar Surface Journal? http://www.jsc.nasa.gov/history/miss...s/apollo10.htm The transcripts of Apollo 10 LM staging are at this URL: ( Starting on page 211 of the PDF document [original page - "Day 5 - Page 209"]): http://www.jsc.nasa.gov/history/miss...ns/AS10_LM.PDF PDF - Rusty Barton |
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