Hi Pete
In the UK the Rotax912/4 is used a lot in microlights and they tend to be f
lown at much lower revs.... somewhere between 4000 and 4500....and I don't
hear of loads of gearbox problems.
Because of noise certificates many Rotax micros are set up to max static of
4800.
Go figure??
Kind Regards
Steve Ivell
GSTES
E-mail: steveivell@pestproof.co.uk<mailto:steveivell@pestproof.co.uk>
From: owner-europa-list-server@matronics.com <owner-europa-list-server@matr
onics.com> On Behalf Of Pete Zut
Sent: 24 March 2022 15:36
Subject: Re: Europa-List: PV-50 Prop settings
Can't advisde on the adjustment to get more fine, but opening a can of worm
s: Isn't 4700rpm cruise brutal on the gearbox? How many hours do you have
on the box now, and have you had a 600hr service, and if yes, what were th
e observations? The advice by my local cert'd rotax guys is to always crui
se above 5100rpm.
Are many others cruising that low? .... and how are their gearbox's holding
up?
Cheers and thx,
PeteZ
C-GNPZ
On Thu, Mar 24, 2022 at 11:09 AM Paul Hawkins <pwhawkinsbuilders@hotmail.co
m<mailto:pwhawkinsbuilders@hotmail.com>> wrote:
Hi
Some advice please on prop settings, my Europa has a 914 engine with an Arp
last PV-50 prop in fine pitch it=92s set to give just under 5400 rpm static
and on take-off works as it should the problem is when I set to cruise I a
im for 130 Kts but I have to keep coming back on the throttle not to go abo
ve that speed I end up with 130 Kts with an rpm of 4200 the problem started
after a prop service, normally I tend to cruise at 125/130 for 4650/4700 r
pm-ish, there=92s 10=B0 difference between fine and coarse pitch, which way
should I adjust + or ' the 10=B0 prop difference?
Cheers Paul
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