=C2-=0AMy thoughts would carb related=C2-maybe choke, maybe one choke c
able slipped causing rich mixture and plugs to foul on one pair of cylinder
s, or some litter, bag , leaf etc ingested in to air intake, or colapsed ai
r filter in to one carb intake or other ,=0A=C2-But a more simple reason
could be:-=C2-more simply we are driven mad by a banging flap of plastic
on our hanger door in 10 knot + breeze so sugest a flap of some sort, plast
ic, caught up on some part of the airframe banging in turbulent air at vair
ious prop speed/ angular=C2-settings !=0A=C2-=0AKevin.=0A=0A=0A________
________________________=0AFrom: Tim Ward <ward.t@xtra.co.nz>=0ATo: "europa
-list@matronics.com" <europa-list@matronics.com>=0ASent: Sunday, 2 October
2011, 19:40=0ASubject: Re: Europa-List: Heavy In-flight Vibration Riddle=0A
=0A=0ARaimo,=0A=0AThe other is carb heat left on for take off?=0A=0ACheers,
=0A=0AToby,=0A=0ATim's other son=0A=0ATim Ward =0A12 Waiwetu Street=0AFenda
lton,=0AChristchurch, =C2-8052=0ANew Zealand.=0A=0Award.t@xtra.co.nz=0A
=0APh 64 3 3515166=0AMob 0210640221=0A=0A=0AOn 3/10/2011, at 4:58 AM, "Raim
o Toivio" <raimo.toivio@rwm.fi> wrote:=0A=0A=0AAll=0A>=0A>I have got plenty
of good guesses via list and also direct.=0A>Some of you have hoped I will
not publish them with their names and do not worry I wont=C2=B4t.=0A>=0A>G
raham =93 I /we got an empty message from you =93 please retype
it =93 I am sure it will be a good info.=0A>=0A>One of you have gues
sed the problem was because a broken de-icing rubber in the prop blade. Tha
t=C2=B4s good but unfortunately my Europa is so far still missing de-icing
systems totally. They would be soon very useful in Finland.=0A>=0A>***=0A>
=0A>No one has so far found a reason for my vibra.=0A>=0A>So there are stil
l a possibility to get an Xmas packet from Finland.=0A>I quarantee the ship
ment will be worth of making a good guess.=0A>=0A>***=0A>Tips: =0A>=0A>- th
e reason was off /on or black /white =93type and very easy to repair;
it was fixed in seconds. =0A>- when finally found it was not invisible at
all. =0A>=0A>Go On!=0A>=0A>Cheers, Raimo OH-XRT=0A>=0A>=0A>=C2-=C2-=C2
- =C2-=0A>From: Raimo Toivio =0A>Sent: Saturday, October 01, 2011 10:44
PM=0A>To: europa-list@matronics.com =0A>Subject: Europa-List: Heavy In-fli
ght Vibration Riddle=0A>All=0A>=0A>I have hope-so a nice riddle for you.
=0A>=0A>Maybe all the answers are useful =93 let=C2=B4s collect them
all:=0A>=0A>***=0A>=0A>Yesterday I took off from a very remote /small /wind
y (90 degrees 12 knots and gusting MUCH) grass strip. Soon until well over
the ground at altitude +500 feet with full power and 2nd fuel pump still on
and gears up I felt suddenly let us say medium or more shake and vibration
. My immediate reaction was to go around and land immediately but abandoned
because wind was so furious and I felt I cannot do that (a succesful landi
ng). =0A>=0A>I decided to try to fly to the next possible sensible airfield
EFHV which was 10 minutes apart.=0A>=0A>Those minutes were long: I put my
prob (Airmaster CS) to manual and drived it from fine to coarse, tried all
the power settings and also a 2nd fuel filter. Finally I noticed that when
prop was in a climb mode (in my case 5400 rpm /Rotax 912S) and MAP around 2
0 inches I got quite a comfortable flying mode and I headed straight home.
My airspeed was w that selection about 110 knots but because of a strong he
adwind GS was only about 70 knots (wanted to be clearly over the ground at
3000 ft because it was well over sunset and totally dark, yesterday we got
sunset around 1600 Zulutime and time was well over 1630 when flying). =0A>
=0A>So, I pushed home one looooong hour. All the aerodynamics were well. I
was a bit worried my engine will separate or so. When trying to push more p
wr it was more vibra and when trying to pull less pwr same. I Followed a ma
in highway and decided to land there if feeling so. Cars there with lights
are almost like a lighted runway...=0A>=0A>Finally landing to the EFTP flaw
lesly.=0A>=0A>***=0A>=0A>Today we had a FHGP (Family Hangar Grill Party). I
tried to check my plane as well as I can. I found something. Very small ev
idence but something anyway. I tried to fix it and had a test run. I electe
d to go to fly =93 hey I am a test pilot who else =93 and She w
as better than ever!=0A>=0A>I managed to do 2 touches and goes when C172 di
d one with same runway.=0A>=0A>140 knots during downwind makes me always ha
ppy.=0A>=0A>***=0A>=0A>So =93 dear Ladies and Gentlemen =93 wha
t was wrong? =0A>=0A>It would be nice and very life-useful to hear your opi
nions or guesses what was wrong.=0A>=0A>***=0A>=0A>The Rules: one single gu
ess per person, please.=0A>=0A>The Prize: The Best Guess will get a Very Sp
ecial Xmas Present from Finland!=0A>=0A>***=0A>=0A>I will let you know a so
lution after a week =93 be patient.=0A>=0A>Have a nice weekend and=0A
>=0A>=0A>=0A>Cheers, Raimo Toivio=0A>=0A><Europa%20A2A-ala2OK[1].png>=0A>
=0A>Europa XS Mono OH-XRT #417=0A>Updated flight hours /landings: 258,3=0A>
=0A>37500 Lempaala=0A>FINLAND=0A>=0A>p +358-3-3753 777=0A>f +358-3-3753 100
=
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