Dear Paul

I trust this mail find you well!! Thank you for sending me the newsletters. I recently received my plans for a four place Bearhawk, but have not started building yet. I am also considering to auto conversion route. I came up with three possibilities, Subaru, Mazda Rotary and Toyota’s UZ1 or is it 1UZ…?

The Subaru engine is quickly becoming just as expensive as conventional  aircraft engines, so I’ve written that one off.

The Toyota engine is a FAA certified engine. And a V8…

But I’m still considering the rotary engine. I have a lot of questions though.Why do they turn the engine the other way round? Is it because the flywheel side of the crank is made stronger than the front side? How would I overcome the problem of the engine turning the prop anti-clockwise when viewed from the pilot seat? What PSRU’s are available is any that would make it possible to fit a variable pitch propeller?

These are some of the questions I have and I haven’t even started yet!

I am looking forward to your reply/suggestions!

Kind regards

Shaun


Why do they turn the engine the other way round?

Yes. The flywheel end is much stronger.

With the right gear box the prop turns in the correct direction.

http://www.rotaryeng.net/psrus.html

Several people are working on PSRU's. The fellow that was making them retired.
The design is more or less standardized and is in the public domain.

Electric variable pitch are available and are lighter over all. No gov.

Reading the web site will answer many questions.

http://www.rotaryeng.net

I don't think Toyota is manufacturing the certified engine.
True it was certified in 2008 but but little has been heard
about it since. If you were Cessna Toyota would be interested :)

Paul Lamar

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