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
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 Smithsonians Terms of Use.