I am sure that Felix Wankel and all other early adopters including
Mazda would have had  no idea that 650 HP would be extracted out of a
200 pound, two rotor, Mazda engine.

One thing has become crystal clear. Spark plug cooling is a major
issue in high HP Wankel's. Jim Mederer has done wonders in addressing
this issue.  However the time has come to rethink the cooling system
to make it better.

This is the way I would do it. Put the cold water in the centre
housing near the spark plugs. Let it flow fore and aft and come out
of the centre housing on the other side.

The center housing has another job and that is scavenging the hot
cooling oil out of both rotors.

The easiest way to do that is run the engine plugs up and rearrange
the oil drain backs. For an aircraft that makes a lot of sense. That
way the hot water, hot oil and the exhaust comes out the bottom of
the centre housing.

The turbo can also be under the engine. Fuselages are higher than
they are wide because sitting people are higher than they are wide.

This concept not done yet. I have a lot more work to do when I find
some spare time from the ignition biz.

Thanks to Larry Childs for the excellent rotor housing 3D's.

Paul Lamar


BTW a Super Cub with this engine would set world records for STOL
take off and landing.



Paul, I am amazed, what are we going to do when you head west? Leave
your running lights on so I can follow.

Milo

I suspect the mind will go before the body :-)

Paul Lamar


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