Project SQUID was a United States defense effort post-World War II effort to develop and improve pulsejet and rocket engines, run by the

Office of Naval Research The Office of Naval Research (ONR) is an organization within the United States Department of the Navy responsible for the science and technology programs of the U.S. Navy and Marine Corps. Established by Congress in 1946, its mission is to pla ...

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It was started by discovery of the German

Argus As 014 The Argus As 014 (designated 109-014 by the RLM) was a pulsejet engine used on the German V-1 flying bomb of World War II, and the first model of pulsejet engine placed in mass production. License manufacture of the As 014 was carried out in J ...

pulsejet used on the V1 buzzbomb, which was reverse-engineered as the Republic Ford JB-2, the first American cruise missile. It produced extensive research in the areas of computational flow dynamic

and was used to improve the design of the experimental Fairchild XH-26 Jet Jeep, XH-26 Jeep Jet, which used pulsejets on the rotor tips instead of a central engine. The research led to development of pulse detonation engines, which have been suggested as the engines powering the postulated

Aurora An aurora (plural: auroras or aurorae), also commonly known as the polar lights, is a natural light display in Earth's sky, predominantly seen in high-latitude regions (around the Arctic and Antarctic). Auroras display dynamic patterns of bri ...

spyplane. {{reflist

External links

Developments in high-speed-vehicle propulsion systems: S. N. B. Murthy, E. T. CurranProject SQUID: Compressible Flow through Reed Valves for Pulse Jet Engines: Torda, Paul ; Villalba, I. P. ; Brick, J. H.
Jet engines Aircraft engines