2 Images

This mockup of a J-2 liquid propellant rocket engine, powered by liquid hydrogen and liquid oxygen, is representative of the power plant used on the second and third stages of the Saturn V launch vehicle that took astronauts to the Moon in the Apollo program. The J-2 produced a thrust of 200,000-230,000 pounds. The Saturn V's second (S-II) stage used a cluster of five J-2's, while the third (S-IVB) stage was fitted with a single J-2 . The first manned flight with the J-2 engine was made on October 11, 1968 in the Saturn 1B Apollo 7 test mission. The Rocketdyne Division of Rockwell International donated this J-2 engine mockup to the Smithsonian in 1976.

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

Country of Origin

United States of America

Type

PROPULSION-Rocket Engines

Manufacturer

Rocketdyne Division, Rockwell International (CA)

Dimensions

Overall: 150 in. long x 81 in. diameter (381 x 205.74cm)

Materials

Stainless steel and other metals.

Inventory Number

A19760770000

Credit Line

Gift of Rocketdyne Division of Rockwell International

Data Source

National Air and Space Museum

Restrictions & Rights

Usage conditions apply
For more information, visit the Smithsonian’s Terms of Use.