> > Amazing airplane seen at Camarillo air show.
> > Roger Parker built this over a long period.
> > As I recall he started in 1993. The fuselage was made
> > in a female mold by Rich Trickle of KIS fame.
> > The wings are glass over foam. This is the real thing
> > and not a mockup. All parts work. Rather brilliant
> > design and much like a VTOL F35. Roger was also friends
> > with Vance Jaqua. Taxi test will be performed at Camarillo
> > this week.
> >
> > Right now it is powered by a Toyota Supra turbo six that weighs
> > 375 pounds. All three fans are driven by shafts
> > and Boston right angle cast iron gear boxes so it is
> > a bit over weight and under powered. Roger is looking for a gas turbine
> > around 800 HP. He might eventually settle for a 300 pound, 800
> > HP turbo 3 rotor if we are lucky.
> >
> > The rear ducts rotate 90 degrees from pure lift to pure thrust. He is
> > well
> > aware of the drag on the ducts so his expectations of top speed are
> > realistic.
> >
> > Counter rotating props are cut
> > down IVO but those will not be used for the final design.
> > He will need variable pitch props to control roll and pitch
> > in the hover and VTOL mode.
> >
> > Roger, here is Perry Mick's web site address  on his ducted fan
> > LongEZ for your info.
> >
> > http://www.bridgingworlds.com/duckt.htm
> >
> > Paul Lamar ...No rotor no motor.
>
> Pretty cool! I've made some sketches over the years trying to accomplish
> something similar with the canard configuration. I had one drawn up with
> three turbofans, vectored thrust on the two rears, and the front one
> only vectored downward and shutdown in forward flight. Another one with
> large open props. Paul you might still have some of my old 3D sketches.
> More recently I saw a program on the Osprey, got me thinking about it
> again. I was thinking of making a mini-Osprey with a more conventional
> (non-canard) layout with a Bonanza v-tail.
>
> Perry
>
> No doubt about it the V22 is faster than a ducted configuration.
>
> --
> Paul Lamar ...No rotor no motor.


Here is a somewhat conventional helicopter rotor that retracts
like a prop on a motor glider.
http://www.globalsecurity.org/military/systems/aircraft/xv-2.htm

-Jeff Martin

There was a slight editing mix-up.

Has anyone created a retractable rotor?

Answer: No "A stowed- or stopped-rotor aircraft has never flown.
Full-scale models of both stowed-and stopped-rotor systems have been
tested in the National Aeronautics and Space Administration (NASA)
wind tunnels at Ames Research Center."
http://www.globalsecurity.org/military/systems/aircraft/xv-2.htm

-Jeff Martin


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