Subject: Metal verses composite props
From: Rotary Engine
Date: 9/29/2005, 10:02 AM
To: AA-me


Correct me if I am wrong but with Butch's LAEV prop the motor uses juice
only when the position is changed right?  I am interested in the new
AeroComposites' C/S prop.  Pricey but light and extremely well made.  They
only make electric drives for their military contracts unfortunately. I
would have to modify  their hub to adapt a electric motor and worm drive
gear.

Doug in Japan

The big advantage to the metal CS prop is the high efficiency. I have
yet to see a composite prop equal it.

Paul Lamar


RE> You should look at the whirlwind props.
RE> http://www.whirlwindpropellers.com/
RE> Marc Wiese

RE> Some of the guys racing tried them. Still not as good as metal.
RE> Hard to beat the big bucks that Hartzel and McCauley put into R & D.
RE> It would be best if some of the carbon fiber guys
RE> copied exactly the the metal prop plan form, airfoil and twist.

RE> Paul Lamar

  What have you-all heard about the AeroComposite Props?  See:

    http://www.aerocomposites.com

  They claim significant anecdotal improvements over standard metal
  props across the board.




It was interesting to see the LAEV prop name again.
Is it still alive?
Is there any progresss on this issue?
Has it been ground, or maybe even air tested?
Why did it vanish from the discussion?

Jerzy


We will have to ask Butch.

Butch why?

Paul Lamar


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