Usage Conditions May Apply Usage Conditions Apply There are restrictions for re-using this media. For more information, visit the Smithsonian's Terms of Use page. IIIF provides researchers rich metadata and image viewing options for comparison of works across cultural heritage collections. More - https://iiif.si.edu View Manifest View in Mirador Viewer Usage Conditions May Apply Usage Conditions Apply There are restrictions for re-using this media. For more information, visit the Smithsonian's Terms of Use page. IIIF provides researchers rich metadata and image viewing options for comparison of works across cultural heritage collections. More - https://iiif.si.edu View Manifest View in Mirador Viewer Usage Conditions May Apply Usage Conditions Apply There are restrictions for re-using this media. For more information, visit the Smithsonian's Terms of Use page. IIIF provides researchers rich metadata and image viewing options for comparison of works across cultural heritage collections. More - https://iiif.si.edu View Manifest View in Mirador Viewer

This is the J-2 liquid propellant rocket engine that powered the second and third stages of the Project Apollo Saturn V launch vehicle which sent astronauts ito the Moon. The second stage was fitted with a cluster of five J-2s and a single J-2 powered the third stage. The J-2 used liquid oxygen and liquid hydrogen as propellants.

J-2 engines were successfully used on every Apollo mission from the first manned test flight, Apollo 7, in 1968 to the last Moon landing mission, Apollo 17, in 1972. The Saturn V also launched the Skylab 1 space station in 1973 and a J-2 powered the second stage of the Saturn 1B that launched the Apollo-Soyuz Test Project (ASTP) in 1975.

 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: 132 in. tall x 80 in. wide (335.3 x 203.2cm)
Other (Nozzel): 80 in. diameter (203.2cm)
 Materials Stainless steel and other metals; some piping aluminum.
 Inventory Number A19760766000 Credit Line Gift of Rocketdyne Division, Rockwell International Corporation Data Source National Air and Space Museum Restrictions & Rights Usage conditions apply
For more information, visit the Smithsonians Terms of Use.