Today's Message Index:
----------------------
1. 02:47 AM - 6 Nations (David Joyce)
2. 07:56 AM - Re: propeller shaft alignment w/ cowl (John Wigney)
3. 11:42 AM - Europa: propeller shaft alignment w/ cowl (Fred Klein)
4. 04:04 PM - Inquiry into getting some Flight time in a Europa Monowheel (Jeffrey J Paris)
5. 07:42 PM - Re: Inquiry into getting some Flight time in a Europa Monowheel (JEFF ROBERTS)
Message 1
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Just a reminder to European Europa pilots:
The 2010 6 Nations Tour is scheduled for September 11-18th,
finishing at the Texel Rally. I had contemplated making it a S. Europe tour,
but having just got back from having my brains cooked in a big way in a heat
wave in Spain,(visiting all of Wellington's Battle Sites for the Dawn to
Dusk Challenge!) I am inclined to make this a N. Europe 6Ns. Anyone
interested please get in touch soonest.Regards, David Joyce, G-XSDJ
Message 2
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| Subject: | Re: propeller shaft alignment w/ cowl |
Hi Fred,
I built my XS mono with a regular Rotax 912S and followed the manual
precisely with regard to alignment of the engine to the fuselage. I also
fitted the cowl and spinner with great care. Once flying, I found that I
had at least 1/2 a ball or more of skid in straight and level flight. I
fixed this by adding one washer to the top and bottom engine mounts on
one side. The result, of course, is that the spinner is now out of
alignment with the cowl if you look carefully. I chose to leave it like
that although another option is to correct with a rudder tab. Anyway,
the moral is that even when you try hard it may not come out right.
As far as vertical alignment is concerned, I would be surprised if a 0.2
degree misalignment such as you describe can not be trimmed out with the
normal elevator trim tab operation.
Cheers, John
ORIGINAL MESSAGE
From: Fred Klein <fklein@orcasonline.com>
Subject: Europa-List: propeller shaft alignment w/ cowl
Gentlemen,
As per previous posts, I'm installing a MPEFIed Sube derivative engine
and have made my cowls from Alex Bowman's molds. I'm presently
confronting an issue common to the stock engine installation and am
looking for some counsel.
I've adhered to the build manual w/ regard to P factor offset, and my
prop shaft at the flange is spot on the fuselage centerline; however,
it is about 1/4" high. I'm confident that I can lower it by adjusting
the thin washer count at the intersection of engine mounting frame
with the europa mounting frame.
With the fuselage secure in its cradle and my smart level reading zero
deg. at the port door sill, my reading of the vertical face of the
prop flange is 89.9 to 90.0 deg., depending on the weather, or time of
day (who knows?).
I've noted the caution in the manual to ensure that the plane of the
prop flange is 90 deg. to the waterline. And I'm aware that raising
the prop flange to center it within the cowl prop opening will affect
its verticality...perhaps by as much as 0.2 degrees.
As a matter of superficial aesthetics, I'd like to center everything
up...at the same time, I'm leery of conceding that the plane of the
prop flange will be "off" by this amount...so my questions are:
- Would 0.2 degrees off from true vertical of the plane of the prop
flange be within acceptable limits?, and,
- Would anyone comment on their experiences in addressing this issue?
One of my mantras has been, "I can only strive to achieve
perfection"...that's fine enough overall, but I'm sure there are
individual aspects of our build where perfection is both achievable and mandatory.
Fred
Message 3
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| Subject: | Europa: propeller shaft alignment w/ cowl |
Begin forwarded message:
> From: Fred Klein <fklein@orcasonline.com>
> Date: July 19, 2010 9:28:12 AM PDT
> To: John Wigney <johnwigney@windstream.net>
> Subject: Re: Europa: propeller shaft alignment w/ cowl
>
>
> On Jul 19, 2010, at 7:49 AM, John Wigney wrote:
>
>> I built my XS mono with a regular Rotax 912S and followed the
>> manual precisely with regard to alignment of the engine to the
>> fuselage. I also fitted the cowl and spinner with great care. Once
>> flying, I found that I had at least 1/2 a ball or more of skid in
>> straight and level flight. I fixed this by adding one washer to the
>> top and bottom engine mounts on one side.
>
> Hi John,
>
> Thank you for describing your experiences...good to hear from
> you!...hope to see you at RR in Sept. !.
>
> What you describe gives me pause...out of modesty, I've adhered to
> the manual's P factor offset rather than making a guess at
> increasing it in proportion to the increase in cruise power I'm
> anticipating. (If I cruise at 4500 rpm, engine will be putting out
> about 115 hp w/ about 135 ft/lb of torque...w/ my 1.9 PSRU ratio, I
> believe that translates to 256 ft/lb @ the prop.). Hmmmmmm...
>
> If you recall, was your "fix" in the nature of increasing or
> decreasing the offset called for in the manual?
>
> Fred
>
>
Message 4
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| Subject: | Inquiry into getting some Flight time in a Europa Monowheel |
Dear Europhiles,The time is getting close in regards to "fledging" our Europ
a Classic Kit #A012 Tail # N127ZP. =C2-Other than a few punch list items,
a thorough weight and Balance followed by our DAR inspection our Bird is rea
dy to go. =C2-With that in mind, I am inquiring about the possibility of g
etting some flying time in a monowheel configured Europa.I live in Rochester
, NY and if there was somebody with a flying monowheel within a reasonable t
raveling distance I would love to work out any details in regards to the afo
rementioned request. =C2-If your a CFI with a monowheel that would be all
too perfect, however, even some right seat time as a passenger would be help
ful as well. =C2-It would just be nice to pick a builder/flyers brains on
all things Europa monowheel if you know what I mean.Thanks for your time and
consideration.Cheers,Jeff Paris =C2-Europa Classic Monowheel powered by a
Jabiru 3300/Dynon D180/ Monroy CAS/ Lorance Airmap/ Garmin X-ponder/ Icom R
adio.
Message 5
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| Subject: | Re: Inquiry into getting some Flight time in a Europa Monowheel |
Jeff,
I cant help you with the mono wheel. I guess I can't help you at all
other than with some advice. I did ten hours on a Katana DA-20 before
I flew my Europa. I loved it but only flying 152's I would have loved
anything. I remember saying this would be a perfect plane with a foot
or two less wing. Once I flew my Europa I new I had my wish. Yes she's
a tri but the katana is a good choice to get some time in if nothing
else is available for the flying part. Then get some tail time in
whatever tail dragger you can find. I know a few guys that did some
duel mono glider time before they flew the Europa mono with some good
results. Anyway get what you can get... then taxie her as much as
possible. Then fly her in some still mornings and you'll be fine. What
about it Troy?
Get the time off and bring her to Rough River in the middle of
September for the fly-in. They'll be more monos and mono pilots for
you to pick their brains.
Good Luck!!
Jeff R. N128LJ Gold Rush
On Jul 19, 2010, at 6:02 PM, Jeffrey J Paris wrote:
> Dear Europhiles,
>
> The time is getting close in regards to "fledging" our Europa
> Classic Kit #A012 Tail # N127ZP. Other than a few punch list items,
> a thorough weight and Balance followed by our DAR inspection our
> Bird is ready to go. With that in mind, I am inquiring about the
> possibility of getting some flying time in a monowheel configured
> Europa.
>
> I live in Rochester, NY and if there was somebody with a flying
> monowheel within a reasonable traveling distance I would love to
> work out any details in regards to the aforementioned request. If
> your a CFI with a monowheel that would be all too perfect, however,
> even some right seat time as a passenger would be helpful as well.
> It would just be nice to pick a builder/flyers brains on all things
> Europa monowheel if you know what I mean.
>
> Thanks for your time and consideration.
>
> Cheers,
>
> Jeff Paris Europa Classic Monowheel powered by a Jabiru 3300/Dynon
> D180/ Monroy CAS/ Lorance Airmap/ Garmin X-ponder/ Icom Radio.
>
>
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