Dave Scott's ring-bound flown CSM Systems Data manual carried into lunar orbit aboard the Command Module Endeavour during the Apollo 15 mission, 8.5 x 10.5, 66 pages, signed and flight-certified on the front cover in blue felt tip, "Flown in lunar orbit for 6 days, during Apollo 15, July 26-Aug 7, 1971, Dave Scott, Apollo 15 CDR." The cover is marked "Apollo 15, CSM Systems Data, Part No. SKB32100115-340, S/N 1001," and bears a magazine clipping of a nude woman affixed inside as a gag, bearing a comical notation, "Check this system!" The manual is comprised of highly detailed diagrams and fold-out schematics of the many electrical, mechanical, and fluid-based operating systems in the Command Module. Each diagram and schematic is tabbed for the corresponding system and subsystem, including: "Dock Probe," "Interface CSM-LM Elec," "Interface CSM/Exper," "Pwr Dist Experiments," "Suit/Cabin Press," "Primary Glycol," "Cryo," "Fuel Cell," "Overview Comm," "Inertial Subsystem," "Optics," "Auto/Manual RCS," "Map Camera," and many more. In fine condition, with some expected wear to covers and toning to tabs.
Accompanied by a signed letter of provenance from Scott, in part: "I hereby certify that the 'CSM Systems Data' book included with this letter was used throughout the 12-day Apollo 15 mission, including lunar orbit for six days during the first extended scientific exploration of the Moon, July 26-August 7, 1971...This multi-page comprehensive book contains 65 tabbed fold-out pages, each of which is 3 feet long containing 5 linked panels of detailed systems diagrams, illustrations, and procedures. This Systems Data book was necessary to monitor and correct any discrepancies or failure modes in the CSM, including close coordination with the Mission Control Center. Among other topics, it includes Mission Rules, Go-no-Go criteria, switches, circuit breakers, and complete back-up systems. Magazines were not carried due to weight limitations; therefore the inside front cover depicts a special system as a lighthearted reminder of life on Earth to stay safe so we could catch up on our reading when we returned. This represented a payback from our backup crew due to our similar practical joke on the crew of Apollo 12. These type gags provided a bit of levity to help offset the intensity of flying a mission to the Moon. For ease of accessibility, each system can be located quickly by the tabs...As the mission commander of Apollo 15, I was in charge of the handling, use and dissemination of the Flight Data File (FDF), as such, this 'CSM Systems Data' book has been in my personal collection since NASA presented it to me upon our return to Earth."
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