Ed Anderson wrote:

Ok, Perry

    I found a diagram with how pitch is measured.  It looks like its
measured from a surface parallel to the face of the propeller to the

chord

of the blade at each station point.  I will take those measurements

at

3"

stations out from the hub center line.

Ed Anderson
Matthews, NC
RV-6A N494BW
eanderson@carolina.rr.com

     Hi, Ed.....I have a gauge made for measuring prop pitch made by

Warp

Drive.  It is approximately 10 inches square with a large graduated

circular

protactor gauge in the middle with a level.  I use it to set the pitch

of

the prop on my Air Command gyro. It has provisions for clamping it onto

the

prop with the attached wing nuts, and you can measure prop pitch, then

put

it on the opposite blade and repeat. It is quite accurate. You can move

it

up and down the blade, of course to obtain measurements at different

points

on the prop.  Just be sure to have it positioned an equal amount of

distance

from the prop tip on each blade, of course.  I can send it to you if you
desire to use it.  Paul Conner, Mobile, AL>

Thanks for the offer, Paul.

    I'll see how it goes with my approach and if it turns out it is
impractical/imprecise, I'll take you up on your kind offer.  Right now, the
simplest approach for me is to use a "T" square and measure the X/Y
coordanants relative to the leading and trailing edge at each station
(relative to a surface parallel to the prop hub surface.  Then a little
spreadsheet magic to turn the X/Y data in to Degrees of pitch.

Ed

 
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