Ken Welter wrote:

 > Does anyone know of a source for cog belts and pulleys suitable for application to a 13B engine?

 Hank Huddleston LNC 235 Rotary
 bahahud@aol.com

Ken Welter builds a cog belt reduction drive.
Search google for Coot.

Paul Lamar

   I make my pulley as there is no off the shelf source for light weight pulleys.
   I make the small pulley from 1045 steel and the large one from
6061-T6 and then hard anodize it.
  What ratio do you need ?I do have some used pulleys that I would
make a deal on.

   Ken
  http://homepage.mac.com/rotarycoot/
  rotary.coot@verizon.net

Ken,

I'm building a Glass Goose, which will accept a 13B with an in-line PRSU.
However, the vertical distances are very tight.  A lower CG may be more
appropriate and a higher thrust line might allow a larger prop -- which is
currently a 65" Warp Drive.

What size Warp Drive prop are you running?

Do you have total weights on your PSRU's?

Thanks,
Scott Gettings

Ken,

Check out Jess Meyers website http://beltedair.gfwireless.com/default.htm
He's not a Rotary powered kinda guy, but he has spent years developing acft belt drives.

Jess Meyers built his first Belt Reduction Drive more than twenty years ago.
Since that time, they have been flying proof of the reliability of belt driven aircraft.
67Y now has over 450 hours of trouble free flying. Read about our development.

L David Stricker
15054 West Piccadilly Road
Goodyear Arizona 85338-8703
602.885.7706

He does not make a ratio suitable for our use. We need something in the range
of 2.85:1 up to 3:1. I am very familiar with the history of this airplane
and I would not exactly  call it trouble free flying :) I also know the test
pilot :)

Paul Lamar
 
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