RCU Forums - View Single Post - Prop for US 40 with OS 61 fx

03-02-2006 | 04:52 PM

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bruce88123

Joined: Nov 2004

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From: Memphis, TN

RE: Prop for US 40 with OS 61 fx

I'd probably start with a 12x6 2 blade and see how that worked. Should be close. You could go as big as a 13x6 if you have the gound clearance.
http://www.osengines.com/manuals/50s...1fx-manual.pdf page 15 list OS recommended sizes.

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