Paul, In your reply you said when viewed from the FRONT of a tractor propeller the 2.17:1 turns counter-clockwise. Think you got that backward. The 2.85:1 turns ccw when viewed from the FRONT (or easier, Conventional rotation).
Bill Jepson

Right your are. I forgot to turn the engine around. We are looking
at the back of the engine. Thanks Bill.

Paul Lamar
 
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