Mailing List flyrotary@lancaironline.net Message #29370
From: Russell Duffy <russell.duffy@gmail.com>
Subject: RE: [FlyRotary] Re: shake, rattle and hum
Date: Mon, 16 Jan 2006 23:22:16 -0600
To: 'Rotary motors in aircraft' <flyrotary@lancaironline.net>
Message

You might go on to something with the Warpdrive prop issue. There were
several cases of VW cranks being sheared off while running Warpdrives &
the 'internet wisdom' was that the carbon blades were so stiff that the
torque reversals from the VW (like a mini-Lyc) were killing the shaft
because the prop wouldn't absorb the pulses. (The reality was probably
that they had just the *wrong* resonant freq & were stronger than the
crank.)

At any rate, Warps became verboten on direct drive VW's.

 
Hi Charlie,
 
I hadn't heard of this, but it's pretty interesting.  I've got the Warp Drive prop off now, and need to cut the IVO off about 2 inches before I install it.  I can absolutely guarantee that it will be better, worse, or the same :-)
 
Rusty
 




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