Paul-

I've searched high & low, but I cannot find the email you sent with
the measured p-port power curve from the dyno runs.  I've been on the
phone with Performance Props to try & get a prop made, but I can't
answer the "what is the top RPM" question.  For some reason 6500 RPM
was stuck in my head, by with Tracy's 2.85:1 redrive, that would be a
prop speed of about 2200 -- absurdly low.

Anyway, can you dig up the relevant old email so I can get the prop designed...

Thanks,

Mark

We never really got it to work right yet but my guess for a prop is
7500 engine RPM and 275 HP. When the time comes I will pop over there
and help you tune it on the ground at static RPM. Tracy manintains
if you do this for static RPM of around 6000 RPM the top end
will be well in the ball park. I'll be cutting some new
1/4 inch slide throttle spacers for you when I get back from OSH.
At that time I will send you the new sealed slide throttle.

The fixed pitch prop chosen will depend somewhat on the length and altitude
of the runway you fly out of. If you have a long runway you can afford
to trade off low speed thrust for high speed cruise.

Paul Lamar


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