Jetavator, Cutaway, Rocket Motor, Poseidon C-3


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:

This is a cutaway of a jetavator used on the Navy's Poseidon C-3 submarine launched ballistic missile (SLBM). Jetavators like this one controlled the direction of the solid propellant exhaust gases during flight.

The Poseidon C-3 entered service aboard the Navy's fleet ballistic missile submarines in 1973. The Navy took them out of the active inventory in 1991.

Transferred to NASM from the U.S. Navy's Strategic Systems Program Office in 1973.

Collection Item Long Description:

Inventory Number


Credit Line

Transferred from U.S. Navy

Country of Origin

United States of America


Purple plastic core of wing-like shapes; inner lining of wings, aluminum; some segments of object, brown phenolic; some cutaway adpapters, steel; some cork inlays at bottom of object; steel bolts, screws, and other attachments


Overall: 29.8 × 4.4 × 106cm (11 3/4 in. × 1 3/4 in. × 3 ft. 5 3/4 in.)

Data Source

National Air and Space Museum

Restrictions & Rights

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


CRAFT-Missile & Rocket Parts

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