Fred Haise's detailed schematic of the Extravehicular Mobility Unit (EMU) space suit carried around the moon as part of the Apollo 13 LM Systems Data Book, 36 x 10.5, signed and flight-certified in the upper right corner in blue ballpoint, "Flown to the moon on Apollo 13-a schematic of the simple Space Suit (EMU)! Fred Haise, Apollo 13 LMP," and signed in blue felt tip, "James Lovell, Apollo 13 CDR." In fine condition.
This schematic provides intricate details of the multiple components which comprise the Apollo Extravehicular Mobility Unit, or moon walking ability space suit. The exaggerated size of the space suit allows easier viewing of the numerous subsystems which provide oxygen, electrical power, cooling, communications, and other functions that enabled an Apollo astronaut to function in a vacuum on the lunar surface.
Multiple labeled smaller drawings include a full face drawing of an Omega Speedmaster wrist watch, communications headset, helmet latching device, ventilation diverter and pressure relief valves, oxygen and cooling water connectors, various pressure gages and clip restraints. and the biomedical injection patch. Also shown are schematics of the extensive details of Oxygen Purge System (OPS) are included plus information on current flows for the astronaut biomed system, and components of the main oxygen and liquid cooling systems.
Three different systems provided oxygen and cooling to the Apollo space suit. First by the support components inside the Command Module, second by components inside the Lunar Module, and the third was the Portable Life Support System (PLSS), commonly known as the 'backpack,' used while the astronaut was out on the lunar surface.
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