Just before reentry of the command module on the return home, the umbilical connection was severed and the service module was cast off and allowed to burn up in the atmosphere. The CSM was …

These engines are used to control the flight path until CM/SM separation just before re-entry. The SPS engine and its fuel accounts for about 75% of the weight of the SM. The SM body is made of …

Apollo Apollo Command Command & & Service Service Module Module Propulsion Systems Overview • Define the systems for CSM propulsion and control

Upon achieving orbit, the Apollo 7 crew performed a transposition maneuver to simulate docking with a lunar module (no lunar module was carried on Apollo 7). During this transposition and simulated …

The Service Propulsion System (SPS) engine provided thrust for the braking maneuver to enter lunar orbit; “transearth injection” to head back home; and any major course corrections needed to refine …

The Service Propulsion System (SPS) is the Command/Service Module main engine and provides the impulse for all velocity changes (ΔVs) throughout a mission and the SPS abort capability after the …

The SPS engine served successfully on all Apollo missions, including the Apollo-Soyuz Test Project in 1975. This object was donated to the Smithsonian in 1986 by the NASA Johnson Space Flight Center.

facets of the design and testing approaches used in man rating the Apollo SPS engine. These techniques, along with an extensive engine system test program at sea level and simulated altitude …

A major portion of the service module was taken up by propellant and the main rocket engine. Capable of multiple restarts, this engine placed the Apollo spacecraft into and out of lunar orbit, and was used …

The CSM consisted of two segments: the Command Module, a cabin that housed a crew of three and equipment needed for re-entry and splashdown; and a Service Module that provided propulsion, …