Shown here is the S-3 engine that powered the U.S. Army's Jupiter intermediate range ballistic missile (IRBM), the first missile of its type put into service by the United States. Developed and built by the Rocketdyne division of North American Aviation, the S-3 was a modified version of the engine that powered the Army's Redstone missile. The S-3 used liquid oxygen to burn the RP-1 fuel, a type of kerosene. During flight, the engine burned for 178 seconds and produced a thrust of 150,000 pounds.
NASA transferred this engine to the Museum in 1966.
This object is not on display at the National Air and Space Museum. It is either on loan or in storage.