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Date: Tue, 12 Sep 2006 13:04:09 -0400
From: Ernest Christley <echristley@nc.rr.com>
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To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Subject: Re: [FlyRotary] Re: It runs!
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Ed Anderson wrote:

>
>
> If you find the equation, I'd like to see it.  A 4" square piece of 
> timber is more than I would care to have swinging at 2400 rpm in front 
> of me {:>).
>
> Ed
>
For a test stand, the timber has safety advantages.  It will produce 
lots of vortex energy in the air, but no directional vectors.  There 
won't be 180 horses trying to pull the engine off the stand, pulling the 
stand over, or picking up debris and blowing it directly in your face.  
Any piece of wood that hits you spinning that fast will sever a body 
part.  A piece of timber that large can easily handle the tensile loads 
as long as the grain is straight and is knot free.

-- 
         ,|"|"|,              Ernest Christley       |
----===<{{(oQo)}}>===----    Dyke Delta Builder      |
        o|  d  |o        http://ernest.isa-geek.org  |