Paul,
 I recently acquired a dragonfly with a Mazda single rotor 12A turbo
 engine.
  It has the cast iron end plates, a belt reduction drive, and what looks
 like an electronic dual ignition.  It looks like a fair amount of work has
 gone in to getting this set up, but I have no records of the work.
 Among my many questions the most important would be:

 Is this engine appropriate for this plane?
 What would be your guess at weight and Hp for this setup?

 I have no experience with rotary engines, but like the concept of
 reliability.
 I'm actually quite close to SZP and could possibly stop by some time if
 that's acceptable to you.
 Thank you,
 Randy

 Well it is a bit heavy. Is there any ballast in the tail?
 Engine weight with cooling could be as much as 330 pounds
 or more. HP could be anywhere from 130 to 250 depending
 on intake manifold configuration, boost and PSRU ratio.

 Hey no need I'll pop over and take a look. Where are you?
 You can answer that by putting the word "PRIVATE" in the subject box.

 Is it flying?

 Send some pictures.

 Paul Lamar

 Paul,

 If Randy doesn't mind, I think we would all enjoy seeing pictures of this
 rotary a/c.

 Mark S.



 Here are some shots of my engine setup.

 Randy




 Paul, I would give the builder a 9 out of ten for packaging this many
components around the engine in such a small cowl with reasonable service
accessibility to almost everything. The oil filter down low where changing
it allows catching the mess without having to wash down the engine is nice
and the turbo without motor mount tubing wrapped all across it is also
nice.
The point deducted from a perfect 10 deals with the oil cooler being so
close to the drive belt. Early problems with a worn out belt could cause
contact with the cooler and the belt looks hard to inspect during preflight
checks when the cowl is on. You might take a port-a-band with you and get a
souvenir from the metal block extending above the cowl line for no reason
apparent in the pictures.
      Do you have a guess what HP a side port one rotor with a turbocharger
would be expected to produce.Additional layers of glass around the motor
mount attach points would seem advisable.

      In order to correct a center of gravity issue on a tandem wing
airframe it would seem better to shift the front wing forward so that the
center of gravity is the same percentage of the distance between the wings.
Adding weight goes against performance and adds stresses to the airframe in
a place not part of the original design.

george grimes

I can't tell much by looking at the pictures as most of the
details are hidden.

It does look like it needs some cooling help.

I missed the single rotor part at first so HP will be around 100
depending on a lot of things. FW forward weight will be down in
the 250 to 300 pound range.

Paul Lamar

Nice installation, but is that an aluminum exhaust pipe after the wraping?

Would be nice to know more of the history of this aircraft.... who what
where when.