Just starting my wings on my Zenith 750. It'll be a while til I need an
engine, and talking to my hangar partner, he is looking into a twin
rotor. I like the concept, although I don't understand them, they are
proven performers. So, to get the ball rolling, I am interested. Mostly
in finding a donor, where, when, how, etc. I am an aircraft mechanic,
so I do know a little about mechanical things, however, when I comes to
rotary engines, I'm very new, and need to look to you for some good
knowledge. What I need is dependability. I also need about 100 hp os so.
Thanks very much, and I agree with you as far as spam and all that junk.
Peace

Mike Festa
 Zenith 750

Welcome to the Newsletter Mike.

Read the web site below and ask questions on what is not covered.
Also we have a new article coming out in Kitplanes in a week or two.

Paul Lamar

Paul,
    Your quick response is appreciated, thanks. Your paperwork on
Rotary Engines are all listed as 200 hp range. Only one, Paul Yaw, has a
single rotary, but didn't say what hp it made. This is what I need for
power. 100- 115 hp range, my airplane has a never exceed speed of 110,
so the higher hp engines are not applicable. Is there any way I can
reach Paul Yaw? And do you have a recommendation for, say a single
rotary of that range? All your data is impressive. Is there anyone out
there with a rotary in a Zenith Airplane? Thanks for adding me to your
newsletter. Peace

                                                    Mike Festa

One rotor Mazda's are heavy and more expensive than two rotor Mazda's.
You can make them more competitive weight wise by using $1500 each aluminum
end housings from Racing Beat. Daryle Drummond makes the best.
daryl@drummondengines.com.
http://www.drummondengines.com/
Demand a P-port version tuned for 7500 RPM peak HP.
My guess is it would be about 200 pounds firewall forward.

If you can wait awhile AIXRO are working on a light weight
100 HP 2 rotor version of their 50 HP Kart engine. It will probably
come in under 175 pounds firewall forward or less.

Paul Lamar