Apollo 13 () factual errors
Explore ♜Kali Baucom 's board "Apollo 13" on Pinterest. | See more ideas about Apollo 13, Apollo 13 and Film posters. That said, I don't remember looking forward to it back in In the 25 years between Apollo 13 the moon shot and Apollo 13 the movie, the families — makes for the weakest scenes: the most important relationship in the film And, when it's over, you realisze that, yes, you knew the ending but it wasn't. Ending / spoiler for Apollo 13 (), plus mistakes, quotes, trivia and more.
This is an effect of gravity - on earth the water vapor in breath, which is the component that becomes visible in the cold, rises because it is lighter than the surrounding air. Since the astronaut was in a "weightless" environment, his breath should have travelled in a straight path from his mouth into the surrounding atmosphere, rather than rising.
When the LM separates from the CM just prior to re-entry, what you see in the film is an undocking, rather than a jettison. The difference is that in a jettison the CM's docking probe is pulled out of the CM to make way for parachute deployment, while in an undocking the probe the triangular shaped thing pointing "forward" of the CM is left to allow for redocking later.
And in case you're wondering how the astronauts transferred between the two while docked with the probe in place, the answer is that they didn't - they dismantled it to create the tunnel. As an interesting aside, in real life the CAPCOM I think it was Joe Kerwin gave a go for "undocking" then corrected himself moments later using the phrase "correction, go for jettison".
During the launch sequence, all nine swingarms on the launch tower are seen retracting, one by one, as the Saturn V reaches full thrust. In real life, only five swingarms would still be attached to the rocket during this phase.
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These "in-flight" arms would swing away as the rocket lifted off and cleared the launcher. The fiery rocket plume left behind the Saturn V as it is ascending directly after lift off is far too small and short. In reality the flaming rocket plume was easily 2 to 3 times the diameter of the entire ship and at least 3 to 4 times the length.
The initial smoke shown coming out of the rocket gimbals during 'ignition sequence start' is not nearly fast or 'enthusiastic' enough. There is just way too much white vapor for too long a period shown in the film.
In reality, the crew heard the bang 93 seconds later. In reality, the launch vehicle was rolled out on the mobile launch platform using the crawler-transporter weeks before the launch date. The movie depicts Swigert and Haise arguing about who was at fault. The show The Real Story: Apollo 13 broadcast on the Smithsonian Channel includes Haise stating that no such argument took place and that there was no way anyone could have foreseen that stirring the tank would cause problems.
Apollo 13 - Wikipedia
According to the mission transcript, the actual words uttered by Jack Swigert were "Hey, we've got a problem here" talking over Haise, who had started "Okay, Houston".
Ground control responded by saying "This is Houston, say again please. The following story relates the origin of the phrase, from an e-mail by Apollo 13 Flight Dynamics Officer Jerry Bostick: As far as the expression "Failure is not an option," you are correct that Kranz never used that term.
In preparation for the movie, the script writers, Al Reinart and Bill Broyles, came down to Clear Lake to interview me on "What are the people in Mission Control really like? We never panicked, and we never gave up on finding a solution. Review board The second memorandum to Cortright from Paine and Low on April 21 established the board as follows: Mark Director, Ames Research Center. Brian Duff Public Affairs Officer. Manned Spacecraft Center Activities and report The board exhaustively investigated and analyzed the history of the manufacture and testing of the oxygen tank, and its installation and testing in the spacecraft up to the Apollo 13 launch, as documented in detailed records and logs.
They visited and consulted with engineers at the contractor's sites and the Kennedy Space Center. Once a theory of the cause was developed, elements of it were tested, including on a test rig simulation in a vacuum chamber, with a damaged tank installed in the fuel cell bay.
This test confirmed the theory when a similar explosion was created, which blew off the outer panel exactly as happened in the flight. The resulting fire rapidly increased pressure beyond its 1,pound-per-square-inch 6.
The shock also either partially ruptured a line from the number 1 oxygen tank, or caused its check or relief valve to leak, causing its contents to leak out into space over the next minutes, entirely depleting the SM's oxygen supply.
Tanks storing cryogenssuch as liquid oxygen and liquid hydrogen, require either venting, extremely good insulation, or both, in order to avoid excessive pressure buildup due to vaporization of the tanks' contents.
Apollo 13 () ending / spoiler
The Service Module oxygen tanks were so well insulated that they could safely contain supercritical hydrogen and oxygen for years. Each oxygen tank held several hundred pounds of oxygen, which was used for breathable air and the production of electricity and water. The construction of the tanks made internal inspection impossible.
The tank contained several components relevant to the accident: The heater and protection thermostats were originally designed for the command module's volt DC bus. The specifications for the heater and thermostat were later changed to allow a volt ground supply, in order to pressurize the tanks more rapidly.
Beechcraftthe tank subcontractor, did not upgrade the thermostat to handle the higher voltage.
The oxygen shelf carrying the oxygen tanks was originally installed in the Apollo 10 Service Module, but was removed to fix a potential electromagnetic interference problem. The tank appeared to be undamaged, but a loosely fitting filling tube was apparently damaged, and photographs suggested that the close-out cap on the top of the tank may have hit the fuel cell shelf. The report of the Apollo 13 review board considers the probability of tank damage during this incident to be "rather low.
To avoid delaying the mission by replacing the tank, the heater was connected to volt ground power to boil off the oxygen. Lovell signed off on this procedure. When the thermostat opened, the volt supply fused its contacts closed and the heater remained powered.
The board confirmed by testing that the thermostats welded themselves closed under the higher voltage.
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A chart recorder on the heater current showed that the heater was not cycling on and off, as it should have been if the thermostat was functioning correctly, but no one noticed it at the time. The sustained high temperatures melted the Teflon insulation on the fan power supply wires and left them exposed. When the tank was refilled with oxygen, it became a bomb waiting to go off. During the "cryo stir" procedure, fan power passed through the bare wires which apparently shorted, producing sparks and igniting the Teflon.
This in turn boiled liquid oxygen faster than the tank vent could remove it. Apollo 13 details of oxygen tank number 2 and the heater and thermostat unit In Junethe Cortright Report  provided an in-depth analysis of the mission in an extremely detailed five-chapter report with eight appendices.
It included a copy of established NASA procedures for alleviating high pressure in a cryogenic oxygen tank, to include: Turning the four tank heaters and fans off; Pulling the two heater circuit breakers to open to remove the energy source; Performing a 2-minute purge, or directly opening the O2 valve.
Telemetered parameters of the oxygen tank rupture incident, with inset image of pressure relief valve This procedure was designed to prevent hardware failure so that the lunar landing mission could be continued. The Mission Operations Report Apollo 13 recounts how the master caution and warning alarm had been turned off for a previous low-pressure reading on hydrogen tank 2, and so it did not trigger to call attention to the high oxygen pressure reading.
Prior to the accident, the crew had moved the scheduled entry into the lunar module forward by three hours. This was done to get an earlier look at the pressure reading of the supercritical helium SHe tank in the LM descent stage, which had been suspect since before launch.
After the abort decision, the helium pressure continued to rise and Mission Control predicted the time that the burst disc would rupture. The helium tank burst disc ruptured at The expulsion reversed the direction of the passive thermal control PTC roll nicknamed the "barbecue roll". Corrective actions The oxygen tank was redesigned, with the thermostats upgraded to handle the proper voltage.
The heaters were retained since they were necessary to maintain oxygen pressure. The stirring fans, with their unsealed motors, were removed, which meant the oxygen quantity gauge was no longer accurate.