Subject: 13b powered dragonfly
From: Rotary Engine
Date: 1/5/2007, 2:54 AM
To: AARotary Engine


    >> Yes, there is a great market waiting for a good, proven
   one-rotor. It
    >> would take a big bite out of the 100HP market.
    >
    > Agreed!!!!!!
    >>
    >> The major stumbling block is the e-shaft -- even with iron
   endplates it
    >> would have a lighter all-up weight than the O-200. With aluminum you
    >> would be lighter than the Notax (er, ROTAX) 4-strokes. I wonder
   what it
    >> would cost to make them the right way?
    >>
    >> Keith
    >
    > You don't want to know !!
    > George ( down under)
    >
    > George, Extreme Racing charges $3700 Aus for a three
    > rotor shaft. What is the US to Aus exchange dollar for dollar rate
    > right at the moment? Surely they can knock out a one rotor shaft.
    >
    > http://www.xtremerotaries.com/
    >
    > Maybe we can get together and have a group buy on one rotor
    > shafts. If ten people order one rotor shafts from Extreme
    > I am sure they would whip out a batch. They got the billet
    > material in stock and the NC lathe program is more or less done.
    >
    > Paul Lamar ...No rotor no motor.

   Paul,
   I spoke to the chief engineer (X-Treme) they had one made for testing a
   single rotor set-up and wern't interested unless there was an order
   for ten
   at $1,500 ea ($1,200 US). Very expensive IMHO, they would however be
   of a
   high quality.
   I have made a new contact that I should be able to contact next
   week, who
   has his on machining shop (CNC), I've had dealings with his brother and
   others associated with him, so we shall see what come of our
   discussions.
   The exchange rate is about 79 to 80 Austs cents to the US$, X-treme
   have a
   different method of placing the rotor filling jet which may or may
   not be
   the best way to go.
   George (down under)

Please forgive the ignorance, but would`nt a cut-down 13b shaft work for
a single rotor?

--
Erik Snyman
Messina
South Africa.

That is usually the way it is done. Then you need new counter
weights of course... new shaft or cut down shaft. No difference.
One rotor engines wind up costing more than two rotor engines.
It is cheaper to change the type of airplane :)

Paul Lamar ...No rotor no motor.

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