Subject: wankel q. for paul ...
From: Rotary Engine
Date: 4/23/2007, 6:15 PM
To: AARotary Engine


 > I am hoping you can answer a wankel question for me.
 >
 > I want to find a Midwest engines wankel, AE-50, and have been unable to
 > find one for sale anywhere.  I understand that Midwest was bought-out by
 > diamond aircraft so there don't seem to be any new, but still need to
 > find one used.
 >
 > Have you any ideas?
 >
 > Thx,
 >
 > Steve
 >

 >Try sending email to Diamond Chris Dries <c.dries@diamond-air.at>

 >Paul Lamar

 >Hey Paul,

 >I've tried diamond, and they want nearly $20k for one motor.  That seems way
 >too expensive.

 >Steve

 >What is the horse power and how much does it weight .
 >Clifton.

 >It is about 120 pounds and 100 HP two rotor.
 >One of the reasons Diamond is not producing this engine is the fact
 >that only reciprocating piston engines are allow in certified S-Light Sport Aircraft.
 >Who would blame Diamond for sitting on this Certified rotary engine under those
 >circumstances.

 >I spoke to a person in the FAA about it and he said we literally needed
 >and act of congress to get the rule changed. No joke!
 >We need to start a letter writing campaign on this. Find out who your Congress person
 >is and write a letter. Lets get the rule changed. Discrimination is the history
 >of the Wankel rotary engine.

 >If you write a letter send me a copy and others can use it as an outline.

 >Paul Lamar ...No rotor no motor.



Hi Paul,

Any chance of convincing the powers to be that the Wankel is a recip?
The e-shaft has a "throw" ( the eccentric offset) similar to a piston
engine's crankshaft throw. And if it were NOT reciprocating, the shape
of the rotor housing would be perfectly round like a turbine. Obviously,
not a traditional recip, but who makes the detailed definition of what
constitutes a "reciprocating engine"?
Dave M.

An internal combustion engine of "positive displacement" would apply to
the Reciprocating piston engines and to the Rotary Wankel engine
and it would exclude a turbine power plant.

However, I also liked the Australian version of
"If powered, a single, non-turbine engine fitted with a propeller."

Rolf Pfeiffer


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