Pete,
Airmaster CSU sets the cruise rpm at 5000rpm as recommended in Rotax POH.
You can of course adjust it as required with the CSU. I use 4500rpm in the c
ircuit when giving other pilots a rating. Otherwise the speed downwind incre
ases to 125kts only having to reduce it to 83kts for gear extension.
Gear box torque on last annual check was good. 850hrs.
Cheers,
Tim
Sent from my iPad
Tim Ward
12 Waiwetu Street,
Fendalton,
Christchurch, 8052
New Zealand.
ward.t@xtra.co.nz
021 0640221
> On 25/03/2022, at 4:44 AM, Pete Zut <peterz@zutrasoft.com> wrote:
>
> =EF=BB
> Can't advisde on the adjustment to get more fine, but opening a can of wor
ms: 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 the
observations? The advice by my local cert'd rotax guys is to always cruise
above 5100rpm.
>
> Are many others cruising that low? .... and how are their gearbox's holdin
g up?
>
> Cheers and thx,
> PeteZ
> C-GNPZ
>
>> On Thu, Mar 24, 2022 at 11:09 AM Paul Hawkins <pwhawkinsbuilders@hotmail.
com> wrote:
>>
>>
>>
>>
>> Hi
>>
>>
>>
>> Some advice please on prop settings, my Europa has a 914 engine with an A
rplast PV-50 prop in fine pitch it=99s set to give just under 5400 rpm
static and on take-off works as it should the problem is when I set to crui
se I aim for 130 Kts but I have to keep coming back on the throttle not to g
o above that speed I end up with 130 Kts with an rpm of 4200 the problem sta
rted after a prop service, normally I tend to cruise at 125/130 for 4650/470
0 rpm-ish, there=99s 10=C2=B0 difference between fine and coarse pitch
, which way should I adjust + or =93 the 10=C2=B0 prop difference?
>>
>>
>>
>> Cheers Paul
>>
>>
>>
>>
|