Hurant Karibian wrote:

Which direction do the Ross-Aero and Tracy Crook
PRSU's turn?
J. Bass wrote the prop he removed from his rotary
turned RH and the rotary setup I bought has a
Ross-Aero with LH prop.

The common 2.17 gear box  turns the prop opposite to most aircraft 
engines and the rotary engine  and Jerry Bass's 2.85 turns
in the same direction to most aircraft engines and the rotary engine.
Looking at the rotary engine from the front of the engine (pilots view
in a tractor airplane) the engine and the 2.85 gear box driven prop turns clockwise. 
 
Paul Lamar
 
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