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Post by drewid on Jan 18, 2011 16:02:02 GMT -4
I know someone did a list of the various mechanical (and other) problems that developed on the missions and had to be flown around. I can't find it though.
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Bob B.
Bob the Excel Guru?
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Post by Bob B. on Jan 18, 2011 16:53:18 GMT -4
I could use that information as well for this project that I'm currently working on. I want to include a slide pointing out that there were problems along the way and not everything went perfectly.
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Post by theteacher on Jan 18, 2011 17:27:37 GMT -4
I could use that information as well for this project that I'm currently working on. I want to include a slide pointing out that there were problems along the way and not everything went perfectly. I think that is a very important point to stress regarding the scope of your project. HBs repeatedly claim that the missions were flawless, which in itself is supposed to be suspicious. It's kind of parallel to the claims about the photos. They are claimed to be so perfect, but in fact the majority of them are bad or redundant or just uninteresting to the average person. That's worth pointing out too I think.
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Bob B.
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Post by Bob B. on Jan 18, 2011 18:16:11 GMT -4
Some of the problems I can think off the top of my head were:
• Apollo 11 – Computer program alarm; broken ascent engine circuit breaker. • Apollo 12 – Lightning strike; TV camera tube burned out. • Apollo 13 – Too many to list. • Apollo 14 – Stubborn docking probe latch; faulty LM abort switch. • Apollo 15 – Faulty front steering on LRV; core drilling problems. • Apollo 16 – Faulty SPS gimbal; heat flow experiment cable pulled loose. • Apollo 17 – Damaged LRV fender.
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Post by laurel on Jan 18, 2011 19:04:52 GMT -4
Apollo 17's launch was delayed because of a problem with the Saturn V, does that count?
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Post by PhantomWolf on Jan 18, 2011 20:42:02 GMT -4
This is the list that I can think off off the top of my head, there are likely ones I have missed, or haven't come across yet.. Apollo 7- Crew got colds/space sickness
- SLA Panel failed to unfold properly after CSM undocking
Apollo 8Apollo 9- Rusty got spacesick resulting in a cut back EVA
- LM engine stuttered at 20% thrust
Apollo 10- LM was docked twisted with fears of the docking mechanism shearing off when undocked
- Radar tracking of CSM caused the AGC to try and fly the LM
through the moon on Abort leading to near gimble-lock
Apollo 11- 1201 and 1202 alarms on landing
- Boulder field lead to landing long and low fuel landing
- Fuel line froze leading to pressure build up after landing
- Broken engine arm curcuit breaker
Apollo 12- Struck by Lightening twice on launch
- Burned out TV Camera
- RTG expanded due to heat and jammed in canister
- Both Hassleblads' triggers broke, one was unfixable
- Lost the Hassleblad Timer
- Bean forgot to remove DAC from its bracket on landing and was hit by it, knocking him out.
Apollo 13- Fred Haise exposed to Measles
- Centre engine on second stage shut down due to pojo
- Oxygen Tank 2 Sensor burned out setting itself to a false high off the scale reading
- Oxygen Tank 2 exploded crippling CSM
- LM's spare LiOH canisters in MESA so CO2 levels rose to dangerous levels
- Blocking out Sunlight caused LM to cool too much
- Swigart got kidney infection due to lack of drinking water
- Shallow entry caused long radio black out on reentry.
Apollo 14- LM docking failure, took 6 attempts to get it to lock
- Loose ball of solder in computer panel shorted out abort button
Apollo 15- LRV steering issues
- Fender broken on LRV
- LRV camera mount lost vertical movement ability
- Final undocking of LM delayed due to Scott's glove having moon dust in it and refusing to lock. New regulations required spacesuits for undocking after the Soyuz 11 accident
- RCS system on CM burnt though one parachutte's lines
Apollo 16- Oscillation problem with the CSM secondary gyroscopes delayed landing
- Broken Core Temp experiment line
- Broken LRV fender
Apollo 17- One of four docking clamps failed to lock into place having to be done manually
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Post by chew on Jan 18, 2011 21:43:47 GMT -4
I thought Mattingly was exposed to the Measles and had to be replaced by Swigert?
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Post by LunarOrbit on Jan 18, 2011 21:47:38 GMT -4
I think it was Borman that got sick.
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Bob B.
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Post by Bob B. on Jan 18, 2011 21:58:10 GMT -4
I thought Mattingly was exposed to the Measles and had to be replaced by Swigert? It was Mattingly. Also, it was Haise who got the kidney infection, not Swigart.
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Bob B.
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Post by Bob B. on Jan 18, 2011 22:15:51 GMT -4
We could also add the irregular heart rhythms of Scott and Irwin during Apollo 15.
PW, I see you list LRV fender problem for both Apollo 15 and 16. They may have had fender problems too that I'm unaware of, but the fender problem that is most well know - where it was torn off and had to be repaired with duct tape - I'm pretty sure happened on Apollo 17.
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Post by laurel on Jan 18, 2011 22:44:34 GMT -4
Yes, it was Apollo 17. Gene Cernan had a hammer in his pocket and he was near the LRV and turned around too quickly and ripped a fender right off. And they tried to tape it back on and it didn't stay on, so they built a new one out of unneeded traverse maps and duct tape. John Young helped come up with the idea. Cernan brought the fender back to Earth. I read all this in the ALSJ; I like stories about this kind of low-tech ingenuity for some reason.
Regarding crew sickness on Apollo 8, I think that Borman was the one who had the worst symptoms, but Lost Moon does mention that Lovell also suffered from nausea early in the flight.
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Post by PhantomWolf on Jan 18, 2011 23:52:55 GMT -4
hey I did say "off the top of my head", I'm not Jay yes, it was 16 and 17 that lost a fender (same one ironically) Forgot the dehydration issue when one of them lost their drinking tube (one of 16's crew?) Also on 15 the secondary valves on the SPS jammed in the open position which could have lead to an accidental firing if the primary ones had failed or been accidently opened.
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Bob B.
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Post by Bob B. on Jan 19, 2011 0:21:30 GMT -4
Forgot the dehydration issue when one of them lost their drinking tube (one of 16's crew?) I think that was Jim Irwin during one of the Apollo 15 EVAs. Regarding crew sickness on Apollo 8, I think that Borman was the one who had the worst symptoms, but Lost Moon does mention that Lovell also suffered from nausea early in the flight. It’s not really known what caused Borman’s illness. Borman believed it was a 24-hour flu bug, while the flight surgeons thought it was either that or possibly a reaction to a sleeping pill. Most people now believe he suffered from a particularly bad case of space adaptation syndrome, which occurs while an astronaut’s vestibular system adapts to weightlessness. This is pretty common as a large percentage of astronauts suffer from it. It’s the same thing that caused Rusty Schweickart’s sickness during Apollo 9. Borman didn’t suffer from it during his Gemini mission because the Gemini capsules were too small to allow the astronauts to move freely around. It wasn’t until Apollo that it became a problem. It’s likely that Lovell’s nausea was the same thing, only a milder case of it.
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Post by chew on Jan 19, 2011 0:21:59 GMT -4
Apollo 13
An error in a checklist caused a delay in starting the first PTC.
The LM S-band system used the same frequency as the S-IVB transponder which interfered with establishing comms with the LM (the LM was to be powered up after the S-IVB crashed into the Moon).
Exiting re-entry black-out 90 seconds past the expected time because the trajectory kept inexplicably shallowing.
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Post by ajv on Jan 19, 2011 0:36:50 GMT -4
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