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also can provide thrust at higher speeds where a propeller becomes less efficient or even ineffective; in fact, a jet engine gains efficiency as speed rises, while a propeller loses it (outside of a certain design range). This gives better efficiency in either operating range than an aircraft powered
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In 1917, O. Morize of
Chateaudun, France, proposed the Morize ejector scheme in which a reciprocating engine drove a compressor supplying air to a liquid-fueled combustion chamber which discharged into a convergent-divergent tube and ultimately out into the
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proposed using a piston engine to compress air that would then be mixed with fuel and burned to produce pulses of hot gas that would be expelled through a nozzle to generate a propelling force.
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motorjet leading to a jet exhaust at the tail. Between 10 and 50 I-250 (a.k.a. MiG-13) aircraft were produced, serviced, and flown by the Soviet Navy through 1950. The similarly designed
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Motorjet engines provide greater thrust than a propeller alone mounted on a piston engine; this has been successfully demonstrated in a number of different aircraft. A
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is injected and ignited. The high temperatures generated by the combustion cause the gases in the chamber to expand and escape at high velocity from the
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by just a propeller or a jet. The same is true of the dual-powerplant aircraft experimented with after the
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The term "motor jet" was established in a patent filed in
Britain by J.H. Harris of Esher, U.K., in 1917.
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was actively pursuing thermojet research in the early 1940s for a project that came to be known as
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became practicable, which were equipped with both a piston-driven propeller and a turbojet engine.
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was a more practical solution to jet power as it used the jet exhaust to drive a
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in the early 1930s, although it was not until 1940 that an aircraft, the
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At the heart the motorjet is an ordinary piston engine (hence, the term
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motorjet-powered aircraft; the propeller is absent on some designs.
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was also produced as a prototype during the same period..
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Motorjet research was nearly abandoned at the end of
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109:Learn how and when to remove this message
604:. McGraw-Hill Professional. p. 74.
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629:A motorjet history and research webpage
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499:at this time to describe his motorjet.
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176:Internal thermal engines
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338:Pulse detonation engine
540:Mikoyan-Gurevich I-250
326:Gluhareff Pressure Jet
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127:Mikoyan-Gurevich I-250
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544:Kholshchevnikov VRDK
304:Air-augmented rocket
43:improve this article
491:Caproni Campini N.1
142:Aircraft propulsion
136:Part of a series on
125:Main components of
436:combustion chamber
321:Valveless pulsejet
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16:Type of jet engine
602:Mach 1 and Beyond
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99:January 2009
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41:Please help
36:verification
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649:Jet engines
576:Luigi Stipa
564:gas turbine
548:Sukhoi Su-5
511:Jake's jeep
479:atmosphere.
225:Steam power
163:ducted fans
643:Categories
473:René Lorin
451:jet engine
432:compressor
404:jet engine
210:Turboshaft
155:propellers
69:newspapers
58:"Motorjet"
505:engineer
496:thermojet
471:inventor
428:propeller
408:thermojet
358:Shcramjet
245:Clockwork
205:Turboprop
570:See also
560:turbojet
515:turbojet
467:In 1908
456:turbojet
438:, where
414:design.
412:pulsejet
400:motorjet
353:Scramjet
316:Pulsejet
311:Motorjet
282:Turbofan
277:Turbojet
271:Turbines
247:drives:
199:Turbines
167:propfans
153:driving
558:as the
462:History
444:exhaust
287:Propfan
83:scholar
608:
537:Soviet
522:Tsu-11
469:French
418:Design
348:Ramjet
159:rotors
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587:Notes
424:motor
90:JSTOR
76:books
606:ISBN
535:The
526:Ohka
503:NACA
440:fuel
62:news
165:or
157:,
45:by
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