George Moore wrote:

Paul,
   I've always wanted to put a Mazda 13B in a single seat Gyrocopter,
but was told by those experts in the Gyro community that it was just too
much engine for a single seater.  Tandem 2 seat Gyros, like Gary
Busters, love the Rotary, but a single seat Gyro is much smaller and
lighter, not to mention not as beefy.

Today I read that a fellow PRA member in Northern California
(Marysville), is building a new design Joe Souza airframe known as the
Pro Bandit using a Continental 0-200 engine.  How does this engine
compare to a Mazda 13B in regards to weight and power?

I'm well along in building my Falcon Gyro which is designed for a Subaru
EA-81, but I've always been determined to Build a Rotary powered
Rotorcraft. Maybe a Pro Bandit will be my next project.  I'm hoping the
two engines are comparable, which would mean that a single seat Gyro
airframe now exists that may handle a 13B ?

George

The installed weight of a Mazda two rotor will be quite a bit heavier than
an O-200. the bare engines weight about the same but you have the weight
of the PSRU, rad, oil cooler and more complex electrical system for the
rotary. On the other hand the 100 HP O-200 cannot touch the rotary in reliable
HP at around 180 to 210 depending on porting. Now a turbo one rotor ought
to be a pretty good as far as weight is concerned with a HP advantage
to the turbo one rotor. If you wanted to build a peripheral port one rotor
that too would be about the same power as the O-200 and about the same weight
with PSRU, etc., etc.


Paul Lamar
 
The Aircraft Rotary Engine Newsletter.              Powered by Linux.

http://home.earthlink.net/~rotaryeng/            http://www.linux.org