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From: "Jack Ford" <jackoford@theofficenet.com>
To: "Rotary motors in aircraft" <flyrotary@lancaironline.net>
References: <list-573547@logan.com>
Subject: Re: [FlyRotary] Re: George Graham glide update
Date: Mon, 20 Dec 2004 06:09:59 -0800
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When I was a kid making model airplanes, we used to arrange the propeller to
freewheel after the rubber bands were expended, rather than rewind them in
the opposite direction. Made a huge difference in the glide performance.

Jack Ford

----- Original Message ----- 
From: "Tom" <tomtugan@yahoo.com>
To: "Rotary motors in aircraft" <flyrotary@lancaironline.net>
Sent: Sunday, December 19, 2004 6:10 PM
Subject: [FlyRotary] Re: George Graham glide update


> I wonder if a free-spinning prop on a broken tranny would not have the
same
> drag as a spinning prop which is turning the motor?    I'd be inclined to
say
> they would differ.
>
> Tom
>
>
> --- Bob White <bob@bob-white.com> wrote:
>
> > Somenone else recently reported a spinning prop having negligable effect
> > on engine out glide.  (Dave Leonard maybe?).  I'm thinking that the
> > biggest effect occurs with a C/S prop that goes to flat pitch when it
> > looses oil pressure.  I think twins often use feathering props for that
> > reason.
> >
> > Bob White
> >
> > On Sun, 19 Dec 2004 15:41:53 -0500
> > "Tracy Crook" <lors01@msn.com> wrote:
> >
> >  He glided about 20 miles from an altitude of only 5000 ft with the prop
> > freewheeling!   I've heard several times that a freewheeling prop (no
> > engine drag on it) would generate lots of drag.  Another sacred cow shot
> > down : )
> > >
> > > Tracy
> >
> > -- 
> > http://www.bob-white.com
> > N93BD - Rotary Powered BD-4 (soon)
> >
> > >>  Homepage:  http://www.flyrotary.com/
> > >>  Archive:   http://lancaironline.net/lists/flyrotary/List.html
> >
>
>
>
>
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