It was that instance.
Nice agent uh?
Seasons greetings
Jerry
LTS@avnet.co.uk
www.avnet.co.uk/touchdown
----- Original Message -----
From: "Tim Ward" <ward.t@xtra.co.nz>
Subject: Re: Flying: Performance: Speed kit.
> Jerry,
> Same thing happened here in NZ. Fortunately not me as I dealt with the
same
> agent. Anyway another builder of a Ban-bi, which has a Rotax 912s and had
> terrible vibration problems, eventually put it down to no slipper clutch
which
> he had ordered.
> So watch out as there is little to tell you on the outside if a slipper
clutch
> has been installed, I think. Otherwise you have to open it up. We got no
> paperwork to confirm it. I faxed Bombardier-Rotax in Austria with engine
number
> to confirm it.
> Happy Xmas,
> Cheers,
> Tim
>
> LTS wrote:
>
> > I have just learnt that the owner of a 912S fitted with an MT problems
had
> > suffered vibrations from day one, much to everyone's surprise.
Eventually it
> > was discovered that the 912S had not been fitted with a slipper clutch
> > despite one having been ordered and paid for. That particular Rotax
dealer
> > is no longer a Rotax dealer.
> >
> > Jerry
> > LTS@avnet.co.uk
> > www.avnet.co.uk/touchdown
> > ----- Original Message -----
> > From: "Peter Zutrauen" <peterz@zutrasoft.com>
> > Cc: <europa@avnet.co.uk>
> > Subject: RE: Flying: Performance: Speed kit.
> >
> > > Another question from the uninitiated:
> > >
> > > I wonder, are the "crankshaft oscillation" and resonant RPM's less
> > critical
> > > on a geared engine like the rotax vs. a direct-drive Jabiru? Are they
> > > significant at all? I would imagine that the gear-train filters much
of it
> > > out? Or does the gear backlash etc. set the system up for some worse
> > > resonance's? I assume the former from Tony's subsequent reply?
> > >
> > > Cheers & and Holiday Wishes,
> > > Pete
> > >
> > > -----Original Message-----
> > > Cc: 72016.3721@compuserve.com; europa@avnet.co.uk
> > > Subject: Re: Flying: Performance: Speed kit.
> > >
> > >
> > > Hi! Mike.
> > > MT Propellers ,in my case supplied the propeller
> > > kit fully balanced, however they insisted that to
> > > maintain warranty conditions it must be supplied
> > > back to them within 50 hours for strain gauge and
> > > dynamic balance tests with the particular engine
> > > combination to identify any resonant RPM's over
> > > the full range of operation.
> > > This now completed a "non-flying" peak resonant
> > > range between 2150 rpm and 2400 rpm has shown to
> > > be present, and they are recommending not to
> > > cruise in that range if possible.
> > > I guess if I can't live with that it means
> > > another trip back to the factory for flight
> > > testing to try to narrow the non- useable range.
> > > The point about this is that simple balance isn't
> > > the full story and further strain gauge testing
> > > needs to be carried out to do the job in a
> > > professional manner. Only with that test can it
> > > be established what crankshaft oscillation is
> > > taking place, allowing you to select the most
> > > engine /propeller friendly flying.
> > > Best regards
> > > Bob Harrison
> > > G-PTAG Europa MKI /Jabiru 3300
> > >
> > >
> > >
> > >
> > >
> > >
> > >
> > > Quoting DuaneFamly@aol.com:
> > >
> > > > Please excuse a dumb question.
> > > >
> > > > How do you know you have an out of balance
> > > powerplant setup? If it is
> > > > "really" out and you start the engine, can you
> > > do damage before being
> > > > able to
> > > > shut it down?
> > > >
> > > > Mike Duane, San Jose (soon to be Redding)
> > > California
> > > > Lurking for a long time but hope to build soon.
> > > >
> > > __________________________________________________
> > > ____________________
> > > > The Europa List is supported by Aviators
> > > Network UK - info@avnet.co.uk
> > > >
> > >
> > >
> > > -------------------------------------------------
> > > This mail sent through UK Online webmail
> >
>
> --
> Timothy P Ward
> 12 Waiwetu Street,
> Fendalton,
> Christchurch,
> NEW ZEALAND
>
> Ph. 0064 03 3515166
> email ward.t@xtra.co.nz
> Mobile 025 2649325
>
>
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