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Apollo 13 as 508 houston we have a problem essay

Apollo 13 (AS-508): Houston, we have a problem.

The Apollo 13 mission was launched at a couple of: 13 p. m. SE RÉVÈLE ÊTRE, April eleven, 1970 from

launch complex 39A at Kennedy Space Center. The room vehicle team consisted of

James A. Lovell, Jr. commander, John L. Swigert, Junior., command module pilot and

Fred W. Haise, Jr. lunar module pilot.

The Apollo 13 Mission was planned as being a lunar landing mission but was

aborted to the moon after about 56 hours of airline flight due to loss of

service component cryogenic air and major loss of power to generate

electrical power, to provide o2 and to create water.

Spacecraft systems performance was nominal until the followers in cryogenic

oxygen fish tank 2 had been turned on in 55: 53: 18 ground elapsed period (GET). Regarding 2

mere seconds after energizing the enthusiast circuit, a brief was mentioned in the current

by fuel cellular 3, that was supplying capacity to cryogenic oxygen tank two fans.

Inside several added seconds, two other shorted conditions occurred.

Electrical trousers in the lover circuit ignited the line insulation, causing

temperature and pressure to improve within cryogenic oxygen container 2 . The moment

pressure come to the cryogenic oxygen container 2 pain relief valve full-flow conditions

of 1008 pound-force per square inch, the pressure began decreasing for about 9sec, at which period

the comfort valve most likely reseated, leading to the pressure to rise again

momentarily. With regards to a quarter of the second later, a vibration disturbance was

noted within the command component accelerometers.

Another series of incidents occurred within a fraction of a second between

the accelerometer disturbances and the data loss. An army tank line burst, because of

high temperature, in the cleaner jacket pressurizing the annulus and, in return, causing the

blow-out connect on the cleaner jacket to rupture. A lot of mechanism in bay 4 combined

while using oxygen build up in that gulf to produce a rapid pressure rise which usually

resulted in parting of the outer panel. The panel minted one of the food of

the high-gain antenna. The -panel separation distress closed the fuel cell 1 and 3

air reactant shut-off valves and lots of propellant and helium remoteness

valves in the reaction control system. Info were lost for about 1 . 8 secs as

the high-gain antenna switched from narrow light to large beam, due to

antenna staying hit and damaged.

Because of these incidences, the CENTIMETER was power down and the LM was

configured to provide the necessary electricity and other consumables.

The CSM was power down for approximately 49: 40 ACQUIRE. The surge tank and

repressurization package were separated with around 860 psi residual

pressure (approx. 6. 5 lbs of oxygen total). The primary water glycol system was

left with radiators bypassed.

All LM devices performed satisfactorily in providing the necessary electric power

and environmental control to the spacecraft. The requirement for lithium

hydroxide to remove co2 from the spacecraft atmosphere was met by a

combination of the CM and LM carts and catomizers since the LM cartridges only would not

satisfy the total requirement. The crew, with way from Objective Control

developed an adapter for the CM carts to accept LM hoses.

The service component was jettisoned at approximately 138 hours GET, and

the crew observed and photographed the bay-4 place where the cryogenic tank

abnormality had happened. At this time, the crew said that the outer skin

covering up for bay-4 had been significantly damaged, which has a large part missing.

The LM was jettisoned about 1 hour just before entry, that has been performed

nominally using main guidance and navigation system.

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Published: 12.05.19

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