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Jet engine
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====Non-continuous combustion==== {| class="wikitable" |- !'''Type''' !'''Description''' !'''Advantages''' !'''Disadvantages''' |- ![[Motorjet]] |Works like a turbojet but a [[piston engine]] drives the compressor instead of a turbine. |Higher exhaust velocity than a propeller, offering better thrust at high speed |Heavy, inefficient and underpowered. Example: [[Caproni Campini N.1]]. |- ![[Pulsejet]] |Air is compressed and combusted intermittently instead of continuously. Some designs use valves. |Very simple design, used for the [[V-1 flying bomb]] and more recently on model aircraft |Noisy, inefficient (low compression ratio), works poorly on a large scale, valves on valved designs wear out quickly |- ![[Pulse detonation engine]] |Similar to a pulsejet, but combustion occurs as a [[detonation]] instead of a [[deflagration]], may or may not need valves |Maximum theoretical engine efficiency |Extremely noisy, parts subject to extreme mechanical fatigue, hard to start detonation, not practical for current use |}
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