"Schemmel, Grant" wrote:

Hi Paul,

Been lurking on the list here for awhile, trying to learn as much about

the rotary as I can.

I recently heard about a guy in FL who is selling a conversion manual to

make an '81 Mazda tranny into a PSRU, with a 2.21:1 ratio.  He's been using
one on a modified e-racer for several hundred hrs now.

Anybody have an opinion as to how reliable this might be?

Thanks!

Grant Schemmel
BD-4 eventually

I don't recommend it. A single spur gear is marginal to take the engine
torque
and the small output shaft of a car transmission is not up to the job of
coping with gyroscopic prop forces. That is a very dangerous approach.
IMHO the risk is not worth the money saved.

Paul Lamar

-David Stricker wrote:

Sounds like George Graham's setup.
I saw the plane at OSH several years ago and talked to George at length
about his PSRU. He's obviously comfortable "flying it".
The price is right, but is there any design margin for the new application?
I would always wonder when it was going to fail.....at high power loading on
take-off...it wouldn't be pretty.
Dave Stricker- 

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