Dear Mr. Lamar,
 I would like to sign up for a free subscription to you rotary engine
 newsletter.  I
 am currently negotiating the purchase of a Focke Wulf P149D which is
 certified in the
 Experimental Exhibition Category.  A major consideration in the purchase
 would be tbe
 potential to repower this aircraft using a rotary engine.  Currently
 the aircraft powered with a 270hp geared Lycoming GO480 (490lbs dry)
 .  The engine mount in this aircraft is extremely strong (overbuilt)
 and the engine compartment is roomy.  After reading your work and
 examining information available regarding experimental aircraft
 already flying with a 3 rotor 20B turbo, it appears that the
 greatest challenge would be to find a PSRU which would allow /=
 300hp and a constant speed propeller.

 Thank you for all the information you have made available on the
 Web.  It has provided a wealth of information.

 Sincerely,
 Joe

 Joseph Palmisano, MD

 You will need a 3 rotor for that level of HP.
 Yes constant speed hydraulic props are a problem but electric
 versions work. So far Tracy's gear box seems to be holding up in Tom
 Parkes turbo 3 rotor Lancair ES.

 Paul Lamar

 Paul,

 Are there any updates on Tracy's 3-rotor RV-8?  There isn't any news
 on his website.

 Steve Brazil

 I haven't heard anything.

 Paul Lamar

 Mild turbo p-port should be capable. Large A/R housing. 3 rotor with turbo
normalize even better, but more happy cabbage involved.

Dale Davies

When I was at Tracy's a few months ago, I saw and took pics of his RV-8
with the 3 rotor. No P-Port, no turbo. He said he had enough power that
full throttle resulted in exceeding Vne quickly. He had no issues, doesn't
use a large radiator, and was all smiles.

Kevin Alderman

Send pictures :)

This is all I have.
Paul Lamar



That is a nice, clean installation!

Steve Brazil


It is not hard to exceed Dick VanGrunsven VNE. IMHO it is set too low.
These are experimental aircraft after all. People are sure to want to
improve the
performance and range of their home built aircraft. It is not just merely a
way
around the FAA maintenance requirements for certified air craft. Dick needs
to beef
up the tails and ailerons on RV's and test for higher Vne's. Most of the
composite
kits have no Vne problems. Apparent density/damping characteristics of
composites
make them less likely to flutter.

Paul Lamar



Paul,

I agree!

Steve Brazil




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