>
> > > Hello Paul,
> > >
> > > My spelling is terrible, it is Aixro. So far the 300 cc is
> > all that is
> > > available. The R301 means single rotor. We have been
> > discussing a R302
> > > engine (twin rotor). The problem is that at 6000 RPM the
> > output is not
> > > enough for LSA at 70-75 hp. (kart engines run up to 9000 rpm
> > to get 48 hp)
> > >
> > > Discussions are ongoing, with the SAE paper authored by Wankel
> > ag et.
> > > al. also being reviewed. All ideas are welcome.
> > >
> > > If turbocompounding were already engineered there would be
> > interest. As
> > > is, just getting a new engine manufactured is using all
> > available assets.
> > >
> > > Dan
> > >
> >
> > What is the matter with running it up to 9,000 RPM for take off
> > and climb out?
> >
> > All you need is a 3.3:1 gear box. HP is RPM times Torque. The
> > more the RPM the
> > more the HP. Airplanes fly on HP and not Torque. With gearing
> > Torque can be
> > almost anything you want it to be. Lets say the engine
> torque is
> > 50 foot pounds
> > at 9000 RPM. With a 3.3:1 gear box prop torque would be 165 foot
> > pounds at 2700
> > RPM. Prop HP is pretty close to being the same.
> >
> > In the case of the NA Mazda engine Torque is 160 foot pounds.
> > With a 2.85:1 gear
> > box prop torque is 456 foot pounds. Prop HP is pretty close to
> > being the same.
> >
> > Paul Lamar ...No rotor no motor.
>
> The draw back for the aixro engine in it present configuration...
> 100hrs TBO.
>
> Marc J.
> NexusMustang
>
> That is a drawback for aviation use. No question about it.
> What wears out?
> --
> Paul Lamar ...No rotor no motor.


I used to Go-Kart race locally with a Rotax Max TBO 50hrs and that was
exceptionnal.  Aixro TBO 100hrs  is a dream come through for Kart racers
and the environment (4 stroke).

No I'm at lost to explain this short TBO.  Just knew TBO was short.  So
I've check several dealers.  One (???) mention TBO of 100hrs.

But Paul dont take my word for it.  Please double check this.  Now off
to watch TV Dogfights P51  on channel History.    Yesssss

Marc J.
NexusMustang


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