Brad-bound NASA manual entitled "CSM/LM Spacecraft Operational Data Book, Volume I, CSM Data Book," with subhead, "Part I, Constraints and Performance, SD 68-447-1B, Revision 3," prepared by the North American Rockwell Corporation and dated April 15, 1970, providing the mission planner with ready visibility of mission constraints and limitations and spacecraft performance capabilities and consumable requirements; the manual incorporates several amendments made between October 16, 1970 and October 22, 1973, and includes sections for the following: Introduction, Space Vehicle Configuration, Spacecraft Constraints and Operational Limitations, and Subsystem Performance and Operational Data. In very good to fine condition, with stains and small edge tears to front cover, and scattered soiling and creasing to interior pages.