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V-2 Rocket Engine Turbopump cutaway


Display Status:

This object is on display in the Rockets and Missiles exhibition at the Steven F. Udvar-Hazy Center in Chantilly, VA.

Collection Item Summary:

The V-2 rocket-engine turbopump drew the propellants--liquid oxygen and water alcohol--from the missile's tanks and injected them under pressure into the combustion chamber. The V-2 motor was not only the world's first large liquid-propellant rocket engine, it was also the first large rocket engine to use a turbopump, following on earlier experiments by the German Army rocket group under Wernher von Braun. This pump moved nearly 9,000 kg (20,000 lb) of alcohol and liquid oxygen from the tanks to the combustion chamber during the 60-second burning time. Driving the turbine wheels in the center of the pump were exhaust gases from a steam generator, which catalyzed hydrogen peroxide into superheated steam and oxygen. The turbine wheels in turn powered the pump impellers for the two propellants.

This artifact is cutaway to show its internal mechanisms. NASA Marshall Space Flight Center transferred it to the Smithsonian in 1975.

Collection Item Long Description:

Data Source

National Air and Space Museum


Do not reproduce without permission from the Smithsonian Institution, National Air and Space Museum

Credit Line

Transferred from the National Aeronautics and Space Administration


Steel, aluminum, rubber and leather seals


Overall: 2 ft. 8 in. tall x 2 ft. 5 in. wide x 2 ft. 4 in. deep (81.28 x 73.66 x 71.12cm)

Country of Origin



PROPULSION-Components (Engine Parts)

Inventory Number


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