Loon Missile


Display Status:

This object is on display in the Boeing Aviation Hangar at the Steven F. Udvar-Hazy Center in Chantilly, VA.

Loon Missile

Collection Item Summary:

The Loon, also called the JB-2 or KUW-1, was an American copy of the German pulsejet-powered V-1 or "Buzz Bomb" of World War II. It was designed to carry a 2,200-pound high explosive warhead to a range of 150 miles and could be launched from the ground, ships, or aircraft. The air-breathing pulsejet motor is the long tube at the rear.

The development of the Loon came too late for use in World War II, and it was not used in combat. However, it provided invaluable experience to U.S. Navy and Army Air Force (and later, Air Force) personnel in the handling of missiles. The Loon was cancelled in 1950. This object was donated to the Smithsonian in 1965 by the U.S. Naval Supply Center.

Collection Item Long Description:


ca. 1944-1950

Inventory Number


Credit Line

Transferred from U.S. Navy


Country of Origin

United States of America


Overall, steel; propellant and pressurant spheres, steel; pulsejet tube and motor, steel; piping, aluminum; electrical wires, with transparent plastic insulation; some wires also with red and gray plastic insulation; nose cap, aluminum; warhead section, where number is painted, non-ferrous metal, possibly aluminum.


Overall: 27 ft. long x 19 ft. wing span x 2 ft. 8 in. diameter, 1500 lb. (822.96 x 579.12 x 81.28cm, 680.4kg)

Data Source

National Air and Space Museum

Restrictions & Rights

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


CRAFT-Missiles & Rockets

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