Transcription: The Saturn V rocket, the Command Service Propulsion System, and the Lunar Module Ascent and Descent Stages all utilize gimbal-controlled engines. It is imperative for the pilot to understand gimbal angles and engine control surfaces. During basic flight and course correction, engine alignment must be calculated and the appropriate X and Y coordinates must be entered into the navigational computers. An X coordinate is a a left-to-right engine bell movement or angle. A Y coordinate is an up and down engine bell movement or angle. It is imperative that you, the pilot, copy and enter the accurate ...