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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