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Questions regarding Apollo 13 which is launched as a part of American Apollo space program by Saturn v from Kennedy Space Center in April 11, 1970 carrying three crew members but lunar landing was aborted because of rapture of oxygen tank and few technical problems after injection to orbit
26
votes
Accepted
Why wasn't the Apollo 13 Service Module jettisoned until hours before reentry?
It appears that your speculation is correct. From the Lunar and Planetary Institute's Apollo 13 Mission Overview (emphasis mine):
On the Apollo spacecraft, the Service Module (SM) was intended to …
26
votes
What kept crosswinds from pushing Apollo rockets into their own gantry?
The clearances were calculated to be OK up to a 95th percentile wind. I assume there was a Launch Commit Criteria (LCC) for the ground wind, but I have not been able to find an Apollo LCC document. …
30
votes
Accepted
What does "stirring tanks" mean?
There was no "slush" in the Apollo cryo tanks. The O2 and H2 in the tanks were stored at conditions that made them supercritical fluids. The critical pressure for O2 is ~ 730 psi, the Apollo tanks wer …
8
votes
Accepted
What's a "delog"?
While the Mission Control Center's (MCC) Real Time Computer Complex (RTCC) was designed, as the name says, to receive and process data to the consoles in real time, it also recorded the voice and tele …
24
votes
Accepted
Why did the Apollo 13 tank #2 have a heater and a vacuum?
tl;dr
The heaters are there to control the pressure in the tank
The tank is of double-walled construction with a vacuum between, like a Thermos bottle, because the oxygen is at cryogenic temperature
…
36
votes
Apollo 13's plutonium RTG re-entry into the Tonga Trench: Good shootin' or good luck?
Good shooting.
Chuck Deiterich, lead retrofire officer, was responsible for the impact point.
From Henry S. F. Cooper's book Moonwreck aka Thirteen: The Flight That Failed:
Deiterich, however, insist …
35
votes
Accepted
Why would oxygen be stored as a super critical fluid?
The same system was used on Shuttle - allow me to discuss that, the design philosophy applies to Apollo as well (Shuttle deleted the fans though, and had a special Avoid-Apollo-13-circuit in the O2 ta …
9
votes
Accepted
What were the uses of the RTGs in the Apollo spacecrafts?
The RTGs powered the Apollo Lunar Surface Experiments Package.
This is also the first thing that comes up when you google "Apollo RTG".