Spiral-bound original manual entitled “Apollo Command Module / Primary Guidance, Navigation and Control System / Student Study Guide / C/M PGNCS, Level III, System Mechanization Course SM-2100,” November 25, 1966, prepared by the AC Electronics Division of General Motors. The manual, 8.5″ x 10.5″ x 2.25″, approximately 395 pages, contains 10 sections—Introduction to the Primary Guidance, Navigation and Control Systems, Introduction to the Inertial Subsystem, Coupling Data Unit, ISS-System Modes of Operation, IMU Temperature Control System, Display and Control Panels of the Lower Equipment Bay, Power Supplies and Distribution, Signal Monitoring, Detection and Signal Conditioning, Optical Subsystem, and The Computer Subsystem. The manual contains an impressive array of over 200 detailed illustrations. A few annotations can be found inside. In fine condition, with some light staining and creasing to the covers.
