f17582d2_engine___Free_net_encyclopedia__Type
[Description] Similar to a pulsejet, but combustion occurs as a detonation instead of a deflagration, may or may not need valves [Advantages] Maximum theoretical engine efficiency [Disadvantages] Extremely noisy, parts subject to extreme mechanical fatigue, hard to start detonation, not practical for current use [Type] 
Pulse detonation engine
Jet engine - Free net encyclopedia
Type