Re: Re: VP ramblings...

From: Tapio Linkosalo <tapio.linkosalo_at_iki.fi>
Date: Wed, 12 Dec 2012 08:56:32 +0200

On 11.12.2012 22:50, mkirda_at_sbcglobal.net wrote:
> Can you estimate the angular difference between low and high pitch?
> Maybe 20 degrees?

Bottom pitch at 150mm radius 24 degrees = 420mm
Top pitch 42 degrees = 850mm
Angular difference in blades 18 degrees.

Yoke diameter 5mm, actuating arm length 4.5mm -> change in the spring
angle 5/4.5 * 18 degrees = 20 degrees (bingo!) Prop pitch starts to
reduce at approximately 8 to 9 g*cm.




-Tapio
Received on Tue Dec 11 2012 - 22:56:35 CET

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