damkia Posted January 3, 2013 Share Posted January 3, 2013 why are aircraft engines so noisy? The noise is known as a running engine - not a thing heard often on Jabs... ___________ In answer to the OP... Thin walled cylinders (for cooling), minimal muffling (lightness), propeller vortices, torque pulsations transmitted through prop (especially 4 cyl), low rev/high load, engine mounted to firewall (rather than subframe as in a car) allowing drumming of firewall, etc.... Link to comment Share on other sites More sharing options...
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