Subject: Rand CAM Sport Plane
From: Rotary Engine
Date: 12/13/2005, 10:47 AM
To: AA-me


    > > Here is a 3 view dwg of the Rand Cam airplane. Any ten year
    > > old child model airplane builder can glance at this drawing
    > > and tell you what is seriously wrong.
    > >
    > > Lets make it a quiz. What is the most serious, blatant and obvious
    > > design error in this airplane?
    >
    > If the CG mark is positioned appropriately for two passengers on
   board,
    > then the plane will fall on its ass when they get out.
    >
    > Also, as Perry Mick can attest, ducted fans have abysmal thrust
   at rest.
    > How do these yahoos think they'll get a STOL aircraft using them?
    >
    > Russell Kent
    >
    > Close but not what I had in mind. More serious than that.
    > Rutan canards fall on their ass when the people get out.
    >
    > You are absolutely right on the ducted fans. Perry Mick knows more
    > about ducted fans than any ten engineers at NASA. Perry is now
   flying
    > a gear box.
    >
    > --------------------------------------------------
    >
    > Come on guys, put your thinking caps on and tell me
    > what is seriously wrong with this design. I don't have
    > much time as I am going on vacation about Thursday
    > and the newsletter will be shut down. Surely I am
    > not the only guy in the world that can see this.
    >
    > Paul Lamar ...No rotor no motor.


Wouldn't the wingtip vortexes be propagated to the horizontal stab and
effect it by applying a downward force on the top leading edge?
collier

---------------------------
The connecting panels are designed to eliminate or reduce wing
tip vortices and reduce induced drag due to lift. It certainly
makes for a complicated flow field around the wing tips however.

Paul Lamar ...No rotor no motor.

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