Missile, Surface-to-Surface, Minuteman II, Post-Boost Propulsion System
IIIF provides researchers rich metadata and image viewing options for comparison of works across cultural heritage collections.
https://iiif.si.eduView ManifestView in Mirador Viewer
Shown here is the post-boost propulsion system for the Minuteman II intercontinental ballistic missile (ICBM). Unlike the solid-propellant lower stages, the post-boost system carried liquid propellants to help steer the missile. The system consists of small propellant tanks and a smaller helium tank to provide pressure to force the propellants into the combustion chambers.
Upon precise electronic commands, the system activates small bursts of thrust from four equidistant nozzles around the wall of the missile, thereby correctiing its attitude.
Bell Aerosystems donated the post-boost propulsion system to the Smithsonian in 1968.
This object is not on display at the National Air and Space Museum. It is either on loan or in storage.
Country of Origin
United States of America
CRAFT-Missiles & Rockets
Overall: 45.1 × 110.5cm (17 3/4 × 43 1/2 in.)
Overall: 326.6kg (720lb.)
Storage: 123.5 × 123.2 × 61cm (48 5/8 × 48 1/2 × 24 in.) Materials
Cadmium Plating Inventory Number
Bell Aerosystems Co,
National Air and Space Museum
Restrictions & Rights
Usage conditions apply