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Date: Sun, 3 Aug 2008 18:43:03 -0600
From: Bob White <bob@bob-white.com>
To: "Rotary motors in aircraft" <flyrotary@lancaironline.net>
Subject: Re: [FlyRotary] Re: Generator development
Message-Id: <20080803184303.4c13a01e.bob@bob-white.com>
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Hi George,

My 2.85 RWS drive got pretty rough in that range also.  I had to it set
it at 1900 - 2000 to get smooth idle.  I won't say I had the tuning all
worked out yet either.

Bob W.  


On Mon, 4 Aug 2008 10:16:11 +1000
"George Lendich" <lendich@optusnet.com.au> wrote:

> Bob,
> That's how I see it - it works except for 1300 to 1500 rpm, as the springs 
> are already in tension. Tracy speaks about torsional resonance, rather than 
> torsional vibrations ( to me it's like splitting hairs) and he goes on to 
> talk about the ride being smoother. Smoother ride equates to less transfer 
> of vibrations, to me. Therefore if I wanted to make sure about isolating the 
> gearbox from torsional vibrations/ resonance
> large reversals (single rotor as I'm doing) I would not depend upon the 
> springs.
> 
> However Ernest is happy to accept the concept for the convenience, which I 
> suspect is the ability to drive the inlet shaft of the PSRU - with off the 
> shelf components.
> George (down under)
> 
> > Bob White wrote:
> >> Isn't Tracy saying the clutch plate works, but it really isn't doing
> >> much and it only helps in extreme situations, not in normal operation?
> >>
> >> Bob W.
> >>
> > That's how I read it, with the most important point being "it works". 
> > It's a convenient and fairly lightweight method of getting the torque off 
> > of the eccentric shaft and into the PSRU's stub shaft.  I'm not going to 
> > ask any more of it than that. 8*)
> >
> > -- 
> >
> > http://www.ronpaultimeline.com
> >
> >

-- 
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