World War Two Era U.S. Radial Engines (Curtiss and Pratt&Whitney)

In article ,
says...

Did the Curtiss or P&W Radial engines rotate on a mount and spin the
propellor like their WWI predecessors

No. (Am I the 1,000th or 10,000th person to answer this?)

I fly a Piper Cub with a 65 hp engine, and I have been taken off the
centerline a few times by the torque. Can you imagine what the torque
is like when the engine is turning, and not just the prop? Can you
imagine what it would be like when the horsepower gets up around 900?

The rotating engines all dissappeared soon after WW1. Period.

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