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Old 15-10-18, 23:49
Perry Kitson Perry Kitson is offline
metal urgest
 
Join Date: Sep 2008
Location: London, Ont
Posts: 462
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Helicopter gearboxes, and by extension engines, are exposed to far greater torque than an aircraft engine and prop pulling air. When a helicopter is hovering, and especially close to the ground, there is a horrendous amount of resistance to moving the air, which can result in "over torquing" the drive train.
I am guessing that helicopter radials could suffer the same fate as tank radials when loads were too great.

Last edited by Perry Kitson; 17-10-18 at 01:26.
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