Ramjet

:For the hypothetical method of interstellar travel, see Bussard ramjet.

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A ramjet, sometimes referred to as a stovepipe jet, is a type of jet engine. The idea was patented as early as 1908 by Ren? Lorin, but it only became reality with the works of Ren? Leduc (who was stopped by France's occupation in World War II and resumed after the war) and William Avery in the United States.

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Ramjets reduce engine complexity by eliminating most of the moving parts; the speed of an aircraft must be enough to compress air at the ramjet's inlet, eliminating the need for fans.

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The basic principle of a ramjet is the same as that in a jet engine: intake, compression, combustion, exhaust. When air enters any jet engine, its speed decreases and its pressure increases, called the 'ram compression effect'. At high speeds this process can be very effective, and can compress enough oxygen to efficiently burn the fuel for the engine all on its own.

Jet engine: A jet engine is any engine that accelerates and discharges a fast moving jet of fluid to generate thrust in accordance with Newton's . This broad definition of jet engines includes turbojets, turbofans, turboprops, rockets and ramjets, but in common usage, the term generally refers to a gas turbine ...

1908: 1908 is a leap year starting on Wednesday (link will take you to calendar)....

France: The French Republic or France (: R?publique fran?aise or France) is a country whose metropolitan territory is located in Western Europe, and which is further made up of a collection of overseas islands and territories located in other continents....