Paul,

Have you heard of the Norton Motorcycle rotary engines? Check this out:

http://www.alexander-schleicher.de/englisch/produkte/ash26/
e_ash26_main.htm

It solves the aerotow problem.

Paul Nicholson


Thanks for the link Paul.
Yes I have been to the engine factory in Werner Nuestat Austria.
The one rotor Wankel engine started life as Norton. Then became Midwest and
now Diamond Aircraft owns and manufactures it.

"When required the entire drive unit can be easily removed from the fuselage
in just a few minutes. Removal requires undoing three mounting bolts,
unplugging the electrics and separating the fuel line. However, 10 years
of operating experience with hundreds of such drive units all over the
world has already earned this power plant an enviable reputation for
reliability and dependability. Contrary to conventional 2-stroke technology
it is not subject to a time limit and it is also not necessary to dismantle
the engine for an inspection after 6 years. Instead, after 150 engine hours
(1800 launches of 5 minutes each) only a detailed external inspection is
necessary which includes a examination of the combustion chamber through
the exhaust outlet. Provided no wear is found on the rotor seals the engine
can be operated for another 150 hours up to its total design life of 1000
hours. All in all, the rotary engine and drive assembly are a huge step
forward in terms of maintenance, power to weight ratio, reliability, fuel
consumption, noise emission, power output, ease of operation and pilot comfort."

Paul Lamar ...No rotor no motor.

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