They were used on both single and multi engined aircraft.
Yes, the engine spun the propeller; you are thinking of the rotary engines from the first world war where the radial engine itself rotated as the crank was stationary, as in bolted to the airframe, and the prop was bolted directly to the engine which rotated.
I am glad those days are long gone; the modern turbine is so much easier to look after!!
2012 Fuji White 3.0 D4, Rear view camera, Hi-line sound, E-diff, Xenon lights, ARB winch bar, Lightforce 240 50w HID. Brads sliders.
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