FLOWN Apollo 13 LM Systems Data Book Page A schematic coveri

Sale 2109 - Lot 134

Price Realized: $ 3,360

?Final Price Realized includes Buyer’s Premium added to Hammer Price

Estimate: $ 3,500 - $ 4,500

FLOWN Apollo 13 LM Systems Data Book Page. A schematic covering the LM Ascent Engine Propulsion System. Illustrated are the engine bell, fuel and oxidizer lines, storage tanks, shutoff valves, and related instrumentation switches from the LM control panel. Approximately 34x10 inches, pre-folded to 8x10 inches. NASA/MSC, 1969

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Additional Details

This LM schematic labeled "2 APS" for Ascent Propulsion System, was a critical reference tool during the flight. Many of the LM systems were powered down to save electrical power. The crew was able to monitor flight systems with this and other schematics. If the LM Descent Engine failed, the Ascent Engine was the only remaining large rocket engine to give the crew any chance to return home to earth. That contingency would have required LM "staging," no easy task with the Command and Service Modules still docked with the LM Ascent Stage. If such an event occurred, the crew would have lost valuable oxygen, water, power, and other consumables housed in the Descent Stage.
The schematic has been inscribed and signed: "Carried around the moon on Apollo 13! Fred Haise, Apollo 13 LMP" near the center of the schematic. With a Typed Letter Signed from Fred Haise.