Re: [indoor construction] VP or VD

From: Nick Ray <lasray_at_gmail.com>
Date: Sun, 22 Oct 2006 01:00:07 -0400

With a VD prop, the P value isn't constant. The as the radius
increases so does the pitch, Therefore, at the greatest diameter you
will have the highest pitch and so pitch will decrease as a function
of diameter as the flight progresses.
Nick Ray
On 10/21/06, Slobodan Midic <slomi_at_eunet.yu> wrote:
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> Here are some thick questions, but perhaps ...
>
> 1. There are two ways for reducing prop RPM
> in "low ceiling" space in the beginning of flight:
> VP and VD. From the point of prop efficiency
> what method has more advantages than others,
> and why? Under VD I means on the prop
> changing the Dia about 10%, and having the
> constant pitch absolutely (P=Const).
>
> 2. Some people flying with VP prop says:
> Prop is now click on the minimal pitch. Is that
> change from max. to min. in one moment, or
> continually in some time interval...?
>
> Thanks,
> SloMi
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>
Received on Sat Oct 21 2006 - 22:12:52 CEST