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