Subject: PROPELLER PITCH
From: Rotary Engine
Date: 5/7/2006, 9:18 PM
To: AAme



    > The pitch of my old wood propeller which I am retiring is given in
    > inches, while my new Warp Drive uses degrees to set pitch. No
    > reference
    > to inches.
    > What is the relationship between the two methods of measurement?
    > Can you direct me to reference material (for the layman)?
    > Yvon
    >
    > Good question.
    >
    > --
    > Paul Lamar ...No rotor no motor.
    >

   I suggest you call Warp drive with your engine/airspeed/aircraft
   imfo. I was advised to set my prop
   to about 12 degrees...It is now set to 11.5 degrees ! Adjust
   the prop in VERY small increments...
   ,5 degrees or less.If you learn how to correlate degrees
   to pitch please let me know : ))
   Charles in south Mississippi

In order to figure out pitch in inches, you need to know the diameter of
the prop. Think of it like this- the prop is turning through a medium
where there is no slippage. One revolution of the prop pulls (or pushes)
the airplane how far forward (in inches)?

Get out your trigonometry textbook.

Not  trying to be  a smartass, but I'd have to dust mine off to give you
an answer, if I knew your prop diameter, but I'm at work and don't have
it here.

Brian Trubee

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