Astronaut John Swigert with "Mailbox"
Summary
Description: (April 17, 1970) Astronaut John L. Swigert, Jr., Apollo 13 Command Module Pilot, holds the "mailbox" a jerry-rigged arrangement which the Apollo 13 astronauts built to use the Command Module lithium hydroxide canisters to purge carbon dioxide from the Lunar Module. Lithium hydroxide is used to scrub CO2 from the spacecraft atmosphere. Since there was a limited amount of lithium hydroxide in the Lunar Module, this arrangement was rigged up using the canisters from the Command Module. The "mailbox" was designed and tested on the ground at the Manned Spacecraft Center before it was suggested to the problem-plagued Apollo 13 crewmen. Because of the explosion of an oxygen tank in the Service Module, the three astronauts had to use the Lunar Module as a lifeboat.
NASA Photo Collection
- Apollo Expeditions to the Moon: Chapter 13 - NASA History Division
- Space History Photo: Astronaut John Swigert with "Mailbox"
- Category:Mailbox (Apollo 13) - Wikimedia Commons
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