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Transmission Split Torque Design

Transmission Split Torque Design

Transmission Split Torque Design

(OP)
Can someone please provide a simple explanation of a helicopter transmission split torque design including how it contrasts existing transmission designs where you have  2 input pinions (one connected to each engine).  Any good references (web sites) on this issue would also be appreciated.

RE: Transmission Split Torque Design

I am just taking a wild guess but it seems with the weight considerations that a helicopter transmission may just have one input.  It would seem to me they could combine the air flow to drive an impeller much like a turbo-prop.  

Intresting question.

Barry1961

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