Thread: Discussion FMS 40" Cessna 182
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Old Aug 23, 2012, 05:48 PM
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United States, FL, Brooksville
Joined Apr 2008
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Whatever nut threads on this shaft. It's either 3 or 3.17mm, I don't recall which. The flat washer next provides the surface area to contact the back of the prop. Another washer on the front, then another nut.
I think you're overly concerned about the "security". Tighten this just moderately tight and the prop will never move until you break the motor shaft. The soft rubber spinner wont come off either - unless you yank it off.

Ive got over 40 logged flights with this setup and absolutely no problems.
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Last edited by dbc; Aug 24, 2012 at 09:30 AM.
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