Paul Lamar, I've built a Kitfox IV with a Mid West rotary
  engine,This was
  originly built by Norton motorcycle
  co. After Norton went out of business,Mid-West took over and
  converted to AC.
  I'm want to know if you have any experience with this? I've only run
  this on the
  ground so far. The only thing I've fond so far is heat.
  This is I think a very hot running engine. What experience do you
  have in this
  regards? Or suggestions?
  Thank You   Douglas Allds

  Send me a bunch of jpg photo's of your cooling system.
  I Assume you have a digital camera or a cellphone with a camera.

  Paul Lamar


 There are two places to measure the heat  being rejected by the
 Norton/midwest.

 One, of course is the water temp, the other is the temperature of the
 air exiting the air/oil cooling part of the engine.

 You didn't mention which part you are having trouble with.

 I successfully cooled my Norton/midwest, on my dragonfly using a
 relatively small aluminum radiator. I believe that the amount of heat
 rejection that you need is about 75KW.

 If you feel that the radiator size is appropriate, and it is not the
 air/oil cooling (I built a shroud around the air filter that goes into
 the cooling turbine using an aluminum sauce pan (open backed) with a
 separate air feed from the outside of the cowl)

 Tuft your cooling system to see if air is actually flowing through the
 radiator. You may be very surprised.
 Better yet, make and use a manometer.

 Airflow  through a radiator follows specific rules, many of which are
 counterintuitive.

 Keep cool

 Rich


Hello Douglas & co,

We have Norton Aerotor 80 (P62) in our Beaver RX650 and no problems with
cooling so far after flying over 100 hours.  Of course this open air pusher
configuration is different compared to your Kitfox. But it is interesting to
know that this engine is used also by someone and somewhere in this world
and maybe find help, if some spareparts are needed?

Brgds,

Heikki

Heikki,
Have you checked with Austro engines in Wiener Neustadt?

Most of the parts should be interchangeable with their engines.
alexander-schleicher motor gliders have a one rotor version
http://www.alexander-schleicher.de/produkte/ash31/ash31_main_e.htm

"Its modern fuel injection system features automatic altitude compensation to ensure that the generous power output of 41 kW (56 hp) and the 4 m/s (8 kt) climb rate are hardly compromised at altitude. Rotary engines offer simplicity and reliability in a compact design while having a very high power output for their weight and size. There is also no requirement for special fuel such as AVGAS or two-stroke mixture."

Austro claims to hasve sold over 500.

Paul Lamar