LM RCS BUDGET Ground Rules and Assumptions 1. Data for the LM RCS engine performance and propellant requirements were obtained from the Spacecraft Operational Data Book and postflight analysis from Apollo 9 and Apollo 10. 2. All orientation maneuvers were assumed to be made at 2.0°/sec. 3. All orientation maneuvers were assumed to be three-axis maneuvers. TABLE 5-6 LM RCS Propellant Loading and Usage Summary Loaded 633.0 Trapped 40.6 Nominal deliverable 592.4 Gaging inaccuracy and loading tolerance 39.5 Mixture ratio uncertainty 17.0 Usable 535.9 Nominal mission requirement 252.7 Nominal remaining 283.2 5 - 22