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Old Nov 25, 2012, 06:10 AM
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USA, TX, Grapevine
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If you use a thick steel washer as big as the hub on the propeller and weld it onto the rear nut, it may work OK. Then use a thick front washer to match but don't weld it to the front nut. A 1/4 inch thick rear washer maybe even a little more thick, as you don't want it to flex back from the pressure from the nuts tightening down on it. Use a 1/8 to 1/4 inch thick front washer.

The reason the engines drive prop hub is so wide is to provide a larger surface area for friction to grip the propeller with and also to not flexof bow back from the pressure against it from the front prop nut when it is tightened down on it.
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