woody DE wrote:

Dear Sirs ;

I wonder if you could help us.

We are contemplating the use of a rotary engine in pusher configuration on a gyroplane.
We may have access to a scrapped 20B engine.
We need about 120 to 130 HP only.
Has anybody any experience with a single rotor version of this engine to produce that kind of power reliably ?

Weight is of course an issue.

Sincerely,

Woody DE SAAR

There are a couple of people on here working on single rotor versions of the RX7 engine.
130 HP is a bit much HP for a single rotor Mazda. I suggest a stock two rotor RX7 engine.
If weight is a real big issue I suggest a 115 HP 2 rotor Diamond engine.

 ***** RX8 engines in tuned form are already making over 280 HP N/A at 8500 rpm. I don't see any reason why
a single rotor version cannot make130 HP, as it has the bigger ports of each end housing.
All at less than 100 kgs FWF. Dave McC

Got any more details Dave on how they achieved 280 HP at 8500 RPM.
Also who are they?

Paul Lamar
 
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