> Hey,
    >
    > Why don't we use Belleville washers on wood propeller bolts?
   Seems like
    > this is a similar idea to using constant torque hose clamps...
   As the
    > wood shrinks and swells (due to changes in temp and RH), the
   washers keeps
    > a relatively consistent clamping force on the system.
    >
    >
    > Regards,
    >
    > Matt-
    >
    >
    > I have always wondered about that myself Matt.
    >
    > Paul Lamar ...No rotor no motor.
    >

   [Herb Sanders] Make that constantly inadequate torque.

When I tried to do this some time ago the only Bellevilles I could get
were flattened before the correct torque was reached. Now I can't recall
what the correct torque is!
I have now found someone who can supply various thicknesses.

John Evans


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