The Book Of The Moon, Rick Stroud, c. 2009. 523.9STR.
Absolutely fascinating.
The Apollo missions, starting on page 212.
The Apollo programme: 1961 - 1972.
Apollo 11: in depth; log of communications of landing.
CAPCOM
COLUMBIA
EAGLE
- mission launch: 13:32, July 16, 1969
- entered lunar obit: July 19, 1969
- 30 orbits, passing over the planned landing site, in the Sea of Tranquility
- site had been recced by Ranger 8 and the Surveyor 5 lander
- Neil Armstrong and Buzz Aldrin (LM pilot) enter the Eagle Lunar Module: July 20, 1969
- Mike Collins piloting Columbia
descent controlled by the onboard Guidance and Navigation System - tiny computer
- 74 KB: fixed wired memory and the equivalent of 2 KB of 16-bit RAM
- far less than the systems that control modern automobile
- descent began 25 miles over the moon's surface; travelling backwards at 3600 mph
- at 7000 feet, the LM would flip over so Armstrong and Aldrin could see the moon's surface
- at 2000 feet, Armstrong would be able to fly the LM by hand
- communications from the LM back to earth not good, so Collins relayed the LM's comm
- huge error -- described in book; I may transcribe it later
- the GO for continued descent cam from the 26-year-old Guidance Officer (GUIDO), Steve Bales
- it took him 10 - 15 seconds to decide; anything over three seconds in descent is too long
- Steve Bales earned the US Medal of Freedom for his actions
- at 9000 feet, the LM rolled again; Armstrong and Aldrin could see the Sea of Tranquility but did not know where they were relative to the landing site
- alarms again went over
- Steve Bales again overrode the alarm and called GO. They were at 2000 feet.
- landed safely. Engine cutoff.
Apollo 13:
- April 11, 1970
- 46 hours into the mission: the explosion
- CM: Odyssey
- LM: Aquarius
- crew picked up by USS Iwo Jima
- in the slingshot around the moon, the mission altitude on the far side off the moon was 100 km higher than any other Apollo mission;
- the mission is listed in the Guinness Book of Records as having the absolute altitude record for a manned spacecraft
- for the superstitious, a number of odd coincidences
- the number 13 itself is considered unlucky
- the mission launched at 11.4.70 UTC -- digits add up to 13 -- at 13.13 Central Standard Time,
- mission launched from Complex 39 (13 x 3)
- the explosion occurred at 19:13 CST on April 13;
- post-flight estimate of the cost of the damage was $13 million
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