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

Dale wrote:
Cub Driver wrote:

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?

Wasn't torque that took you off the center-line, it was p-factor and
slipstream.

Torque, p-factor, slipstream and gyroscopic precession are *all*
contributors to the left turning tendancies of a prop-driven aircraft.