Subject: Aspect Ratio (for lack of a better term)
From: Rotary Engine
Date: 11/23/2006, 1:12 AM
To: AA-me


     > Hey Paul,
     >
     > My buddy and I were talking about BD5's (not a good idea - Hah!), and
     > the discussion reminded me of that little Wankel Cart engine that was
     > mentioned here a while back.
     >
     > http://www.nova-racing.com/nova_gb/index.htm
     >
     > I started pondering making one of these things as a two rotor - seems
     > perfect - starts out water cooled and it looks like it might be
    p-port.
     > The only thing I think I don't like are the roller bearings..
     >
     > The thing that stuck out when looking at the pics is that the
    rotor is
     > so wide compared to it's other dimensions.
     >
     >
    http://www.nova-racing.com/nova_gb/Preise/Einzelteile_Orig/XN079%7E6.JPG
     >
     > I imagine this is how the 16B rotors might look...
     >
     > I think trying to convert one of these to a two rotor might be
     > preferable to converting a 13B to a single rotor, and might end
    up in a
     > similar (slightly lesser) horsepower range. A complete single rotor
     > weighs less than 40lbs. It seems that a 92hp 2 rotor might weigh
    around
     > 75lbs - light! A 90hp Continental weighs 180lbs+..
     >
     >
     > Matt-
     >
     > Yes it sounds like a better idea than a one rotor 13B.
     >
     > --
     > Paul Lamar ...No rotor no motor.
     >
     >
     > Matt,
     >
     > That's a nice little engine. How would you combine two of them, bolt
     > the shafts to one another?
     >
     > What about the crankcase intake? Wouldn't that be in the way to
     > bolting them together end-to-end?
     >
     > The specs say 31 kilowatt, which is 41 hp, so two would be 82 hp.
     >
     >
     > Regards,
     >
     > Gordon.


    Matt,

    These engines are so small you could almost mount them side by
    side both feeding into a small PSRU.

    Doug


    Doug,

    You could arrange two of them horizontally opposed -- just bolt the
    bases together. It looks like there might be enough room to have a
    pulley right in the middle for prop, with a belt coming off each
    engine to the prop pulley in the middle.

    That would probably fit under the cowl of a small sportplane. In a
    real small cowl, you might have the carbs or exhaust sticking out a
    bit, a la J3 Cub.

    Regards,

    Gordon.


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