USED BY NEIL ARMSTRONG FLOWN LM Activation Checklist A singl

Sale 2073 - Lot 122

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USED BY NEIL ARMSTRONG FLOWN LM Activation Checklist. A single sheet approximately 5.5x8 inches, being ACT-52 and ACT-53 from the checklist. ACT-52 lists part of the RCS (Reaction Control System) engine tests. ACT-53 has the last steps of those RCS tests and the LM Rendezvous Radar Self-Test prior to the lunar landing. With a tab section divider which reads: "rndz rdr self-test" on both sides. NASA/MSC, May/June 1969

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Neil Armstrong completed steps listed on ACT-52 which has the Verb and Noun computer instructions to run the RSC hot firings. The RCS was a group of 16 thrust chamber assemblies arranged in clusters of 4 engines equally spaced around the Ascent Stage of the LM. This system provided stabilization during the main descent and ascent engine burns plus attitude and translation control. The lunar landing could have been scrubbed if this check out procedure failed during the flight.