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Stealth Pilot wrote:
> On 22 Feb 2006 12:34:49 -0800, "ELIPPSE" <elippse@sbcglobal.net>
> wrote:
>
> >For those of you who are concerned about prop bolt torque on non-metal
> >props, check out this article by Vance Jaqua:
> >http://www.geocities.com/vjaqua/prpblvl.html.
>
> I use an australian article written by one of our propeller
> makers.(Bishton)
>
> the aim is for 600psi clamping force or thereabouts.
>
> 5/16"dia bolts try 5 - 8 lb ft
> 3/8"dia bolts try 10 - 13 lb ft
> 1/2"dia bolts try 18 - 25 lb ft.
>
> yes we use belleville washers.
>
Belleville springs. This was a nit with an old engineer with whom I
worked and upon reflection, I agree with him.
Of course a bolt is also a spring, but no one ever talks about
hex-head springs....
--
FF
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Re: Wood/composite prop bolt torque
