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This is the injector head of the Apollo Service Module Propulsion System. The engine steered the Apollo Service Module (SM) towards the Moon, placed it in lunar orbit, and after completion of the mission, returned the SM to earth. Developed by the Aerojet General Corporation in the early 1960s, the engine was non-throttable, gimbaled (steerable), and ablatively-cooled. Using storable propellants, it produced a thrust of 21,900 pounds and was first deployed on the flight of the Saturn V unmanned Apollo 4 mission on November 9, 1967.

Display Status This object is not on display at the National Air and Space Museum. It is either on loan or in storage.
Object Details
Date ca. 1967 Country of Origin United States of America Type PROPULSION-Accessories (to an Engine) Manufacturer Aerojet General Corp. Dimensions 3-D: 63.5 × 47 × 55.9cm (2 ft. 1 in. × 1 ft. 6 1/2 in. × 1 ft. 10 in.)
Materials Aluminum Alloy
Ferrous Alloy
Adhesive Tapes
Inventory Number A19680474000 Credit Line Gift of Aerojet General Corp. Data Source National Air and Space Museum Restrictions & Rights Usage conditions apply
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