I asked the man himself what his experience was with his rotary conversion for his Cozy III... this was his response.
<quote>
Hi Tim,
The rotisserie working just beautifully in the plane, and I was very happy
with the performance I got. Tracy's redux drive and EC2 injection system
is flat out _the_ way to go.
I still maintain that the Wankel engine is the best solution for turning a
propeller. If I build another prop-driven airplane, which is likely, it'll
be Mazda powered.
The real issue I had with the whole thing was that since I flew one of the
very early and I think the first successful turbo aero-Mazdas, I had a
rather a lot of developmental engineering to do that resulted in a lot of,
well, half-assed parts that worked, but were hell to work _on_. Getting
the cowling off was a two man job that took an hour, for example.
To finish the install and make it as easy to wrench on as it should be
would eat up several months time and a big stack of bucks. Robert and
Valerie came across a reasonbly priced (well, sort of) jet engine and I
thought why not? Hence, now the Cozy Jet. Here's a pic from last month so
you can see what we're up to.
Mazda power is a good solution, as is Diesel, but jets is jets, you
know? Stop in in a few months and we'll go for a serious canard ride!
-G
</quote>
Jets is Jets? You gotta love this guy!