This is not strictly Rotary related, but I thought it might be of interest.

   http://www.cozybuilders.org/Desert_Center/Prop_Bolt_Retention.html

   Brian Trubee


   He did it wrong. You don't need that much spring deflection. One or two
   springs
   would have done the job in parallel instead of some in series. 0.012 deflection
   for the springs is near nothing.


   Paul Lamar ...No rotor no motor.


Yes, it seems that you wouldn't need that many washers- really, how much
change in dimension does a wood prop have? But, I like the idea of not
having to constantly check retorque the prop bolts.


Brian Trubee



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