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Re: Pulling on the Prop

Subject: Re: Pulling on the Prop
From: LTS <lts@avnet.co.uk>
Date: Wed, 18 Jul 2001 19:02:54
I have a friend who has hand propped his 912. However he says its not that
easy.

Jerry
                      LTS@avnet.co.uk
           www.avnet.co.uk/touchdown
----- Original Message -----
From: "Fred Fillinger" <fillinger@ameritech.net>
Subject: Re: Pulling on the Prop


> "William S. Stewart" wrote:
> >
> > Glen Saunders of Rotax told me once that the 912/914 was very easy to
hand
> > prop, and that he had done it several times.
> >
> > Bill Stewart, N6LB (A098)
>
> Even if the fact that the Rotax logo is on his paycheck is irrelevant,
> maybe there is a trick to it.  I've seen people prop some pretty big
> radials, but you're still overcoming friction and (especially) inertia
> in the gearbox reduction. And w/o the ability to prime or an
> accelerator pump, and no impulse coupling making achieved RPM
> critical, there's a safety issue where it takes several good yanks as
> you fatigue and get sloppy on the footwork.
>
> At least, I would be concerned about the 914, which lacks a mechanical
> fuel pump.  If you're hand propping due to a dead battery, I don't
> care how easy it is.  I wouldn't fly thing  knowing there may be a
> problem in the electrical system, which is vital in keeping the go
> juice flowing.
>
> Maybe it's just me (is anal retentive supposed to be hyphenated?) :-)
>
> Regards,
> Fred F., A063



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