Troy,
According to the Europa 912 Installation manual, Chapter 10. Propeller
and Spinner, page 10-2 March 2009, last paragraph at the bottom of the
page (emphasis is added):
For the Rotax 912 engine, with the Warp Drive 62=94 diameter propeller
with tapered blades, it is suggested that you set the propeller to 17=B0
pitch angle initially, measured at the tip. For the Rotax 912S engine,
with the Warp Drive 64=94 diameter propeller with non-tapered blades,
set the pitch initially to 19o. Whichever fixed pitch or ground
adjustable propeller is fitted, when the aircraft is stationary and the
engine is at wide open throttle (WOT) you should see a minimum of
5200rpm.The blade angle referred to is the angle between the propeller=92s
rotational plane and the flat rear surface of the blade at the
propeller tip. Ensure that all blades are within 1/4=B0 of each other.
So, I'd say you were spot on and ready to go. You shouldn't see 5800
rpm till you are approaching max speed.
Check six,
Bob Borger
Europa Kit #A221 N914XL, XS Mono, Intercooled 914, Airmaster C/S
http://www.europaowners.org/N914XL
Aircraft Flying!
3705 Lynchburg Dr.
Corinth, TX 76208
Home: 940-497-2123
Cel: 817-992-1117
On Feb 21, 2010, at 14:24, Troy Maynor wrote:
> Hi All,
>
> Yesterday I took the plane out of the garage and rigged it. Started
the engine, let it warm up, and did the pneumatic carb balancing. They
were within 1/2 in.Hg of each other at 3k rpm when I proclaimed it good
and shut it down. Is this close enough? It ran fairly smooth from 3k up
to 5k. The gages were not so closely matched at around 2k rpm. Just
wondering if this is normal.
>
> When all the hoses were put back in place and vacuum gages removed,
plane tied down securely I did a 2 minute run at max rpm, simulating a
climb to safe landing altitude. All went well at first. However, I only
got 5,200 rpm max. The max rpm was reached without the lever being all
the way forward. The last inch or so of lever travel produced no change.
And, no the cables were not being pushed too far. When the lever stops
in the cockpit, the carb lever just touches the stop. I have a 912S
with the ground adjustable Warp Drive prop set at 17 degrees as per
manual. The analog tach is made by Mitchell and is made for Rotax. Will
the rpm go as high as 5800 when the plane is cut loose or do I need to
flatten the pitch to 16 degrees and try it again?
> Thanks again crew.
> Troy
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