Questions tagged [apollo-13]
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
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Apollo 13's plutonium RTG re-entry into the Tonga Trench: Good shootin' or good luck?
Plutonium powered RTGs are encased to survive re-entry. According to the Wikipedia article on Apollo 13
RTGs were used to power … the scientific experiments left
on the Moon by the crews of Apollo …...
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What was the available delta v of the Apollo 13 spacecraft, post explosion?
The LM ascent engine wasn't used for direct abort. Presuming no one cares about the crew and just wanted to burn the LM to empty (both stages), what would the delta v have been? If it helps, I'm ok ...
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Did the crew lock themselves inside the LM on Apollo 13?
Watching and reading about Apollo 13 I am a little confused.
They left the Command Module to use the Lunar Module as a lifeboat but did they close the hatch between the 2 to ensure the CM didn’t use ...
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How can I find Inclination and Longitude of ascending node for the Moon on JPL's Horizons?
To answer the bountied question "Puzzler: Precisely what maximum distance from the Earth did the Apollo 13 astronauts achieve? ", I have to know the Inclination and the Longitude of ...
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Does the post Apollo 13 roast mixtape still exist?
The debriefing party at the Hofbraugarten was merciless, beginning
with a parody of the mission. The tape prepared by the Apollo 13
backup crew and the CapComs was not for the thin-skinned. The parody
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Would replacing a damaged tank have prevented the Apollo 13 incident?
In Oct. 1968, at North American works, one Oxygen tank was dropped from a height of 2 inches, (perhaps on the fill valve side) and this dropping damaged the fill valve. Because of this, this ...
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Apollo 14-17 - Why didn't they keep the Lunar Module docked as a lifeboat for the way back to Earth?
During Apollo 13, the Lunar Module had to be used as a lifeboat in order to save the astronauts. Then, it was only jettisoned from the Command Module shortly before Earth re-entry (even after the ...
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What exactly makes the "bang-bang-bang-bang-bang-bang-bang!" sound just before "Houston, we have hard dock." in the Apollo 13 movie?
About seven seconds after "Capture!" and just before "Houston, we have hard dock" in the feature film Apollo 13 there are about seven loud bangs at about 3 Hz repetition. At this ...
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What is this unlikely-looking contraption ("plutonium battery and scientific equipment") they're making Jim Lovell carry around a parking lot?
The BBC's Did nuclear spy devices in the Himalayas trigger India floods contains the following image and caption.
Questions:
What scientific equipment and which plutonium battery is this?
Since this ...
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What was the normal function of the (coax?) crosshairs used during the Apollo 13 famous manual burn?
What crosshairs were used to maintain an attitude during the famous manual trajectory correction burn during Apollo 13's return to Earth? What was their normal function?
This is all I can hear in the ...
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Did the service module in Apollo 13 do anything useful after the explosion, so that keeping it attached was important? [duplicate]
I realize they didn't know what happened so probably didn't know that there was such extensive damage. However, they didn't eject the service module. Why was that? Did it serve some useful purpose ...
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What kept crosswinds from pushing Apollo rockets into their own gantry?
Watching this unnamed Saturn V launch (Apollo 13?), I see the gantries pull away, and the rocket takes 13 seconds to clear the tower.
That seems like enough time ...
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Why were the openings of the LiOH canisters in Apollo different shapes in the first place?
Many of you probably know the famous "square peg in a round hole" situation on Apollo 13. All three astronauts were in the LM and there was a build up of CO2 from the astronauts exhaling. They had to ...
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Did Apollo 13 produce any scientific results?
Despite an explosion and other setbacks, Apollo 13 landed safely back on Earth on April 17, 1970. Even though the astronauts did not make it to the lunar surface, were any scientific results reported?...
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Did any part of the Apollo 13 LiOH adapter return to Earth?
During Apollo missions, carbon dioxide expelled by the astronauts' breath was removed by lithium hydroxide cartridges in command module and lunar module. Apollo 13 infamously had a problem with ...
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Were any Apollo-13-specific procedures added to standard training?
The Apollo 13 accident required a number of unusual procedures to be followed, some of which had to be improvised or learned on the spot.
For example:
Jim Lovell found that it was difficult to ...
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How were the Apollo 13 CM and LM able to undock without the engines of the SM?
During a normal Apollo mission, the command/service module was undocked from the lunar module using the reaction control system engines on the service module. (Although the command module had some ...
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Why were these Apollo 13 items moved to the lunar module before jettison?
The movie Apollo 13 illustrated the true fact that some items which were not intended to be returned to Earth were brought back anyway, to compensate for weight which would not be returned. However, ...
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Why did Apollo 13 not use the electronics waste heat to raise the Lunar Module cabin temperature?
From Apollo 13 Mission Report:
For the metric impaired like me, 41 °F is 5 °C, 54 °F is 12.2 °C and 60 °F is 15.6 °C.
About 300 W of waste heat plus the body heat of three astronauts, about 250 W, ...
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Who developed the mathematics used to correct the trajectory of Apollo 13?
The 1967 NASA technical note D-4246, Midcourse Guidance Procedure with Single Position Fix Obtained From Onboard Optical Measurements describes correcting the trajectory of a spacecraft traveling ...
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Why did Apollo 13 need to ration water?
Drinking water in the lunar module originated from four water tanks: two in the ascent stage and two in the descent stage. (Unlike the CSM, there were no fuel cells to make more water.) Section 7.2....
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Were more lunar module LiOH cartridges just a spacewalk away?
The modularized equipment stowage assembly (MESA) was a drawer in the base of the lunar module descent stage which stored equipment and supplies.
The modularized equipment stowage assembly (MESA) ...
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Did Apollo 13 "barbecue roll" under the propulsion of the lunar module?
Apollo spacecraft were often put in a "barbecue roll" (officially called passive thermal control mode), which slowly rotated the spacecraft along its main axis. Without this maneuver, one side of the ...
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What's a "delog"?
Listening to the mission control audio loops on Apollo In Real Time in the immediate aftermath of the Apollo 13 explosion, I hear flight director Kranz asking about "delogs":
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Without the accident, would Apollo 13 still have been the farthest crewed mission from the Earth?
This answer notes that the Apollo 13 crew holds the record for the distance that humans have traveled beyond Earth.
Had the mission exactly followed the flight plan, would they still have been the ...
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Had using the LEM's engines for a lunar abort "never been tried like this?"
From the 1995 film Apollo 13,
GRUMMAN REP: I just want you to know the engines never been tried like
this. That's all I'm trying to tell you.
Is it true that Grumman had never considered such a ...
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Ken Mattingly was also a bachelor, so why did everyone give Jack Swigert a hard time?
The Apollo 13 Flight Journal notes that
Swigert's bachelor status was near legendary, even in contemporary times. The prime CMP Ken Mattingly was single as well, incidentally, but did not enjoy ...
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When did Jack Swigert realize that he forgot to file his taxes?
As portrayed in the film Apollo 13, astronaut Jack Swigert forgot to file his taxes:
JACK SWIGERT: Well uh, if anyone from the IRS is watching, I forgot to
file my 1040 return and I meant to do ...
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Why did NASA collect so much data about electrical phenomena at the Apollo 13 launch site?
Apollo 13 was launched at Kennedy Space Center on April 11, 1970. The mission report devotes a considerable amount -- over 7 pages -- to a set of electrical measurements at the launch site:
The ...
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Did they manufacture six space suits for Apollo astronaut James A. Lovell?
An Apollo astronaut got three space suits, one for training on Earth, one for flight and one as backup.
James A. Lovell did fly on Apollo 8 as Command Module pilot and on Apollo 13 as Mission ...
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Was not saving the Apollo 13 astronauts ever considered as an option?
This is a bit of a morbid question, but every source I have checked makes it seem like the moment Apollo 13 had their accident and everyone understood the gravity of the situation, everyone was in ...
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Was the Apollo 13 CO2 problem a matter of capacity, or of rate?
During Apollo 13, an explosion in the service module caused the command module to lose electrical power. This required using the environmental control system of the lunar module to remove carbon ...
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Why would oxygen be stored as a super critical fluid?
Organic Marble just answered a question about Apollo 13 in terms of the storage of Oxygen, and posted some fascinating stuff, including the fact that Oxygen was stored as a super-critical fluid.
I ...
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What does "stirring tanks" mean?
The Apollo 13 disaster occurred right when the "oxygen tanks were stirred".
What does that mean?
What benefits does it give?
What would happen if they didn't stir the tanks?
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Did Apollo 13 CM reach thermal equilibrium when it was powered down?
It was reported that the CM cabin temperature dropped to 43°F. Was that the equilibrium, or would it have gotten colder if it had remained in space longer. If that wasn't equilibrium was there an ...
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Was Apollo 13 radio blackout on reentry longer than expected?
According to the movie Apollo 13 (1995) the radio blackout on reentry was quite a bit longer than expected.
Very dramatic, yes, but:
Did that really happen, and if so, why was it so much longer ...
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Why did the Apollo 13 crew extend the LM landing gear?
From the Apollo 13 radio transcript, as they're going through the Lunar Module activation checklist:
060:58:58 Lousma: Okay. The only item on page 10 is to deploy the landing gear.
060:59:06 ...
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What was Apollo 13's "Little Jolt" after MECO?
Disclaimer: This is a question about the 1995 film Apollo 13; I know Hollywood should always be taken with a moon-sized grain of salt, so the question should read as both "Is this true" and "What was ...
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What happened to Apollo 13 LM descent stage?
I see in the accounts of the Apollo 13 mission that the descent stage engine of the LM were used to propel the joined spacecraft into a return trajectory to earth and that the crew remained in the LM ...
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Puzzler: Precisely what maximum distance from the Earth did the Apollo 13 astronauts achieve?
tl;dr:
Both
this answer to Which astronaut travelled farthest from Earth?
this answer to How far have astronauts been in space?
quote Wikipedia to state that the Apollo 13 astronauts reached 400,171 ...
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Why didn't the Apollo 13 crew wear their spacesuits in the LM?
In the Apollo 13 movie, the crew take refuge in the Lunar Module, the temperature drops and they suffer the cold in their shirtsleeves.
Is this accurate? Is there a reason they couldn't wear their ...
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How do you find lunar flyby using Apollo 13 mission report data?
Link to mission report: https://www.hq.nasa.gov/alsj/a13/A13_MissionReport.pdf
So Im trying to do analysis on the mission phases of Apollo 13 but my part is to only focus on the flyby part. My ...
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Did Charlie Duke actually get the measles?
Deke Slayton: Jim, we've got a problem. I got some blood work back from the lab. Charlie Duke has the measles.
Jim Lovell: [Unconcerned] So we need a new back-up.
Deke Slayton: You'...
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Was Apollo 13's engine really damaged?
According to this answer, turning on Apollo 13's Service Module Propulsion System was considered risky since ground control ditn't know if it was damages in the explosion
Perform a PC+2 hour abort ...
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Why did Apollo 13 need to scrub the air in the LM?
One of the dramatic moments of Apollo 13 (in real life, not just the movie) was when they had to build scrubbers for the LM ("fit the square peg in a round hole").
Why did they have to do that? The ...
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Was a one way trip to the moon considered by the crew of Apollo 13?
I watched the fantastic movie "Apollo 13" recently and there was one scene that stood out as it looked like the crew was considering making a one way trip and landing on the moon.
The script goes ...
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What were the uses of the RTGs in the Apollo spacecrafts?
I was listening to the Plutonium episode of "the Elements" on the BBC, and between 07:00 and 08:30 they talked about uses of plutonium such as spacecraft power and heat. While the returning astronauts ...
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Where can I find the amended/improvised checklists for Apollo 13 post-accident?
I have been trying to find this online without too much avail. For my own reference and cross checking, I wanted to know where I could find the emergency checklists and the "made up on the spot" CM ...
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Did USSR discontinue radio transmissions, relocate ships, to aid the US in response to Apollo 13?
In this article there is following statement by Dr. Ernst Stuhlinger:
Let me only remind you of the recent near-tragedy of Apollo 13. When the time of the crucial reentry of the astronauts ...
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Why wasn't the Apollo 13 Service Module jettisoned until hours before reentry?
Looking at the Apollo 13 mission timeline within three hours after the explosion of O2 tank two all oxygen in the SPS was completely depleted. Fuel cells #1 and #3 were off line. CM had even started ...
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