flyrotary@lancaironline.net Mailing List Archive

George, Marcotte started out with a set up like Tracy is using and must have switched to the pins (these are approximately 3/4 " in dia. as I recall and smaller at the outer end) inserted into the bushings without a thru bolt. I do not have any working knowledge of this set up, that is why I am more than a little concerned about it. It would appear that the disc's would be trying to push themselves apart. JohnD

----- Original Message -----

From: George Lendich

To: Rotary motors in aircraft

Sent: Tuesday, March 11, 2008 2:21 AM

Subject: [FlyRotary] Re: Thrust on E-shaft

John,

That sounds like a lot of dampers out there. I didn't realize Marcotte used that system - how are the opposing sides held together.

George (down under)

Lynn, I have a Marcotte Redrive and the drive disc has 5 pins that appear to have a taper similar to a Morse Taper and the driven disc has isolator bushings, which are internally tapered to fit the pins, of some type to absorb the torisonal vibrations. Will this setup cause an undesirable load on the thrust bearings. I was hoping to get a first start when the snow goes, now this question comes up. JohnD

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