Europa-List Digest Archive

Sun 10/02/11


Total Messages Posted: 19



Today's Message Index:
----------------------
 
     1. 12:58 AM - Re: Re: Sealing the water and oil coolers in a Classic (Frans Veldman)
     2. 02:25 AM - Re: Heavy In-flight Vibration Riddle (Stephan Cassel)
     3. 02:27 AM - Re: Heavy In-flight Vibration Riddle (GRAHAM SINGLETON)
     4. 04:24 AM - Removal of tailplane assembly to implement Mod 62 (GBWFH2010)
     5. 05:59 AM - Re: Removal of tailplane assembly to implement Mod 62 (Carl Pattinson)
     6. 07:32 AM - Re: Removal of tailplane assembly to implement Mod 62 (Richard Wheelwright)
     7. 09:02 AM - Re: Heavy In-flight Vibration Riddle (Raimo Toivio)
     8. 10:28 AM - Re: Heavy In-flight Vibration Riddle (Greg Fuchs)
     9. 10:30 AM - Re: Heavy In-flight Vibration Riddle (GRAHAM SINGLETON)
    10. 10:33 AM - Re: Removal of tailplane assembly to implement Mod 62 (GBWFH2010)
    11. 10:46 AM - Re: Heavy In-flight Vibration Riddle (Fred Klein)
    12. 10:53 AM - Re: Heavy In-flight Vibration Riddle (David Joyce)
    13. 11:07 AM - Re: Heavy In-flight Vibration Riddle (LAURENS yannick)
    14. 11:41 AM - Re: Heavy In-flight Vibration Riddle (Tim Ward)
    15. 11:42 AM - Re: Heavy In-flight Vibration Riddle (Tim Ward)
    16. 12:54 PM - Re: Heavy In-flight Vibration Riddle (Kevin Klinefelter)
    17. 02:44 PM - Re: Heavy In-flight Vibration Riddle (europapa)
    18. 06:02 PM - Re: wheel to underside clearance not 2 but 5cm & wide tyre (keith hickling)
    19. 07:18 PM - Re: Re: Heavy In-flight Vibration Riddle (William Daniell)
 
 
 


Message 1


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    Time: 12:58:51 AM PST US
    From: Frans Veldman <frans@privatepilots.nl>
    Subject: Re: Sealing the water and oil coolers in a Classic
    On 10/01/2011 06:48 PM, zwakie wrote: > I have been to the airport today, took of both cowls and inspected > all hosing. All hoses are in perfect shape, so no need to replace > them at this stage, I'm sticking with current hoses. You are aware that it is mandatory to replace all rubber hoses every five year, regardless of condition? Have you checked when it was last done? > It seems that when the oil rad is removed, I will have about > sufficient room behind the port coolant rad to put the oil-ollant > heat exchanger and route the oil and water hoses without to tight a > radius. Best place is behind the engine. You should try to avoid creating "high spots" in the coolant lines where air or vapour can collect. > My question: will I have an issue at that relative upward position, > won't the oil siphon out there? Keep routing as simple as possible and keep it as low as possible. Oil won't siphon out, unless there is the tiniest air leak somewhere in the system. A few months without flying and you have air in the oil system, if the air reaches the oil pump you will suddenly loose all your oil pressure. Frans


    Message 2


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    Time: 02:25:44 AM PST US
    From: "Stephan Cassel" <stephan@scassel.se>
    Subject: Re: Heavy In-flight Vibration Riddle
    Hi Raimo, Very happy that everything vent ok. Your story sounds very familiar: Two years ago I had a serious prop failure with my WoodComp SR2000. One blade stopped due traverse drive failure. This blade had 6-8 degrees (or even more) different pitch compared with the other two. Must say that I was extremely happy that it was not during an English Channel crossing. I found out that the travers drive that had collapsed, had no grease on. Totally dry! It was the travers drive behind the control unit (stop-switch). When I disassembled the prop, the grease on each prop-blade connection to the hub has become very hard. I talked to Jiri, at WoodComp, and they told me that I should use another grease as they also have found out that the original grease was not good (in fact very bad) Every WoodComp SR2000 users should: 1. Disassemble the prop every 200 hours or less and grease all connections. Use Aero Shell 7 (according to WoodComp) 2. Every annual grease the travers drive. Use Molicote (according to WoodComp). 3. Every annual grease the gear box . Use plenty of Vaseline (according to WoodComp) Now and then clock the time between fine and coarse. It should not take more then 15 seconds. WoodComp say that you can accept 30 seconds but I think that is too much. My prop has now 12 seconds and I will suspect the servo motor or need for new grease when it takes more then 15-17 seconds. This is very important !! If the hub connections is not greased well enough, the travers drive will be overloaded and will sooner or later collapse. WoodComp has excellent HTML based document how the maintain the prop. Best regards, Stephan LN STE Kit 556


    Message 3


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    Time: 02:27:27 AM PST US
    From: GRAHAM SINGLETON <grahamsingleton@btinternet.com>
    Subject: Re: Heavy In-flight Vibration Riddle


    Message 4


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    Time: 04:24:56 AM PST US
    Subject: Removal of tailplane assembly to implement Mod 62
    From: "GBWFH2010" <gcgrant@supanet.com>
    I have too much play in the tailplane and need to strip the whole thing down to conduct a complete overhaul and implement Mod 62 and SB 15. This looks quite a daunting task due to the lack of access and I would be interested to hear from any one who has any hints or tips on how to do this work. Gordon G-BWFH -------- Gordon Grant G-BWFH Read this topic online here: http://forums.matronics.com/viewtopic.php?p=353764#353764


    Message 5


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    Time: 05:59:20 AM PST US
    From: "Carl Pattinson" <carl@flyers.freeserve.co.uk>
    Subject: Removal of tailplane assembly to implement Mod 62
    Gordon Firstly have you considered the Loctite factory mod ? Its not wonderful but it works as long as you can get the Loctite into the gaps between the TP fittings and the torque tube. I have an additional device which I can loan you which pressurises the outside using compressed air pressure which forces the Loctite into the gap. Failing that dismantling is the only other option which is a pain in every possible respect but it can be done. I have had the pleasure of dismantling the tailplane from inside twice in the last 8 years (takes about 4 hours to do the whole job). I am 6'3" tall and medium build. Just make sure you put plenty of old blankets/ padding on the inside of the fuselage and a board/ plywood to stop your knees/ elbows denting the structure and probably best to support the fuselage on the underside (again spreading the load over a wide area. Also a ducted air supply to the work area is advisable (small fan blowing air through access hole works). You will need to remove (or at least disconnect) the large control tube and the counterbalance support frame. I cant remember if we managed to remove it completely but its one component you cant risk damaging. Just be aware that its not a good idea to reassemble the tailplane using Loctite (while its being reassembled) as the Loctite will set before you can get everything aligned - however make sure all the metal surfaces are degreased (except the bearing surfaces). Once you have reassembled everything using oversized pins (assuming you haven't done this once already) then apply the Loctite factory mod to ensure no play develops after you have reassembled everything. Don't make the mistake (that we did) of assuming that fitting the oversized pins (which we made sure were a very tight fit) will cure the wear problem on its own - it wont ! You need the Loctite as well - unless you are opting for one of the more substantial mods (I am referring to the "clamp" mod). When fitting the new pins you need the tightest fit possible (drill the holes with an undersize drill and ream to the correct size). Don't reassemble the tailplane components more than once (or more than necessary) after drilling the holes otherwise you will introduce wear before you even get the assembly back in the fuselage. You may need a small hammer to drive the pins home but at least this ensures the closest possible fit. Hope that helps. Carl & Dot G-LABS -----Original Message----- From: owner-europa-list-server@matronics.com [mailto:owner-europa-list-server@matronics.com] On Behalf Of GBWFH2010 Sent: 02 October 2011 12:22 Subject: Europa-List: Removal of tailplane assembly to implement Mod 62 I have too much play in the tailplane and need to strip the whole thing down to conduct a complete overhaul and implement Mod 62 and SB 15. This looks quite a daunting task due to the lack of access and I would be interested to hear from any one who has any hints or tips on how to do this work. Gordon G-BWFH -------- Gordon Grant G-BWFH Read this topic online here: http://forums.matronics.com/viewtopic.php?p=353764#353764


    Message 6


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    Time: 07:32:23 AM PST US
    From: Richard Wheelwright <rpwheelwright@yahoo.co.uk>
    Subject: Re: Removal of tailplane assembly to implement Mod 62
    Gordon,=0A---- One person you could contact is Pat Tunney, He has s ome fantastic Ideas about this area. Pat monitors the list so he may contac t you on your request.=0A=0A=============== ======0A=0ARichard Wheelwright=0A========== ===========0A=0AFrom: GBWFH2010 <gcgrant@supanet.com> =0ATo: europa-list@matronics.com=0ASent: Sunday, 2 October 2011, 12:21=0ASu bject: Europa-List: Removal of tailplane assembly to implement Mod 62=0A=0A have too much play in the tailplane and need to strip the whole thing down to conduct a complete overhaul and implement Mod 62 and SB 15.=0A=0AThis l ooks quite a daunting task due to the lack of access and I would be interes ted to hear from any one who has any hints or tips on how to do this work. =0A=0AGordon=0AG-BWFH=0A=0A--------=0AGordon Grant=0A=0AG-BWFH=0A=0A=0A=0A =0ARead this topic online here:=0A=0Ahttp://forums.matronics.com/viewtopic. ==


    Message 7


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    Time: 09:02:00 AM PST US
    From: "Raimo Toivio" <raimo.toivio@rwm.fi>
    Subject: Re: Heavy In-flight Vibration Riddle
    All I have got plenty of good guesses via list and also direct. Some of you have hoped I will not publish them with their names and do not worry I wont=C2=B4t. Graham =93 I /we got an empty message from you =93 please retype it =93 I am sure it will be a good info. One of you have guessed the problem was because a broken de-icing rubber in the prop blade. That=C2=B4s good but unfortunately my Europa is so far still missing de-icing systems totally. They would be soon very useful in Finland. *** No one has so far found a reason for my vibra. So there are still a possibility to get an Xmas packet from Finland. I quarantee the shipment will be worth of making a good guess. *** Tips: - the reason was off /on or black /white =93type and very easy to repair; it was fixed in seconds. - when finally found it was not invisible at all. Go On! Cheers, Raimo OH-XRT From: Raimo Toivio Sent: Saturday, October 01, 2011 10:44 PM Subject: Europa-List: Heavy In-flight Vibration Riddle All I have hope-so a nice riddle for you. Maybe all the answers are useful =93 let=C2=B4s collect them all: *** Yesterday I took off from a very remote /small /windy (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 landing). I decided to try to fly to the next possible sensible airfield EFHV which was 10 minutes apart. 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 20 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 headwind 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). 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 pwr it was more vibra and when trying to pull less pwr same. I Followed a main highway and decided to land there if feeling so. Cars there with lights are almost like a lighted runway... Finally landing to the EFTP flawlesly. *** 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 evidence but something anyway. I tried to fix it and had a test run. I elected to go to fly =93 hey I am a test pilot who else =93 and She was better than ever! I managed to do 2 touches and goes when C172 did one with same runway. 140 knots during downwind makes me always happy. *** So =93 dear Ladies and Gentlemen =93 what was wrong? It would be nice and very life-useful to hear your opinions or guesses what was wrong. *** The Rules: one single guess per person, please. The Prize: The Best Guess will get a Very Special Xmas Present from Finland! *** I will let you know a solution after a week =93 be patient. Have a nice weekend and Cheers, Raimo Toivio Europa XS Mono OH-XRT #417 Updated flight hours /landings: 258,3 37500 Lempaala FINLAND p +358-3-3753 777 f +358-3-3753 100 toivio@fly.to www.rwm.fi


    Message 8


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    Time: 10:28:51 AM PST US
    From: "Greg Fuchs " <gregoryf.flyboy@comcast.net>
    Subject: Heavy In-flight Vibration Riddle
    Here is a guess. The rubber equalizing tube connecting the carbs had vibrated off.. Regards, Greg


    Message 9


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    Time: 10:30:56 AM PST US
    From: GRAHAM SINGLETON <grahamsingleton@btinternet.com>
    Subject: Re: Heavy In-flight Vibration Riddle


    Message 10


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    Time: 10:33:56 AM PST US
    Subject: Re: Removal of tailplane assembly to implement Mod 62
    From: "GBWFH2010" <gcgrant@supanet.com>
    Carl, Thanks for the information and all the tips which are most useful. The Loctite mod was applied last year and my inspector and the LAA now think it is time to do the full job. Regards Gordon -------- Gordon Grant G-BWFH Read this topic online here: http://forums.matronics.com/viewtopic.php?p=353796#353796


    Message 11


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    Time: 10:46:33 AM PST US
    From: Fred Klein <fklein@orcasonline.com>
    Subject: Re: Heavy In-flight Vibration Riddle
    Raimo...I'm asking for a clue...by any chance, did you have a cat onboard during this event?...Fred On Oct 2, 2011, at 8:58 AM, Raimo Toivio wrote: > All > > I have got plenty of good guesses via list and also direct.


    Message 12


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    Time: 10:53:28 AM PST US
    From: David Joyce <stranfaer@btinternet.com>
    Subject: Re: Heavy In-flight Vibration Riddle
    Raimo My guess was the fuel filler cap left off? Yes I have done this! Rgds David the other one Sent from the iPad of David Joyce www.eastmidsspas.com On 2 Oct 2011, at 18:43, Fred Klein <fklein@orcasonline.com> wrote: > Raimo...I'm asking for a clue...by any chance, did you have a cat onboard d uring this event?...Fred > > On Oct 2, 2011, at 8:58 AM, Raimo Toivio wrote: > >> All >> >> I have got plenty of good guesses via list and also direct. > > > ========================== ========= ========================== ========= ========================== ========= ========================== ========= >


    Message 13


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    Time: 11:07:12 AM PST US
    From: LAURENS yannick <yck.laurens@gmail.com>
    Subject: Re: Heavy In-flight Vibration Riddle
    perhaps one of the carb vent small tube disconnected ? regards yannick LAURENS F PSCZ


    Message 14


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    Time: 11:41:46 AM PST US
    From: Tim Ward <ward.t@xtra.co.nz>
    Subject: Re: Heavy In-flight Vibration Riddle
    Raimo, Two thoughts. Fuel starvation with the fuel pumps not turned on for take off? Cheers, Hannah Tim daughter Tim Ward 12 Waiwetu Street Fendalton, Christchurch, 8052 New Zealand. ward.t@xtra.co.nz Ph 64 3 3515166 Mob 0210640221 On 3/10/2011, at 4:58 AM, "Raimo Toivio" <raimo.toivio@rwm.fi> wrote: > All > > I have got plenty of good guesses via list and also direct. > Some of you have hoped I will not publish them with their names and do not worry I wont=C2=B4t. > > Graham =93 I /we got an empty message from you =93 please rety pe it =93 I am sure it will be a good info. > > One of you have guessed the problem was because a broken de-icing rubber i n the prop blade. That=C2=B4s good but unfortunately my Europa is so far sti ll missing de-icing systems totally. They would be soon very useful in Finla nd. > > *** > > No one has so far found a reason for my vibra. > > So there are still a possibility to get an Xmas packet from Finland. > I quarantee the shipment will be worth of making a good guess. > > *** > Tips: > > - the reason was off /on or black /white =93type and very easy to re pair; it was fixed in seconds. > - when finally found it was not invisible at all. > > Go On! > > Cheers, Raimo OH-XRT > > > > > From: Raimo Toivio > Sent: Saturday, October 01, 2011 10:44 PM > To: europa-list@matronics.com > Subject: Europa-List: Heavy In-flight Vibration Riddle > > All > > I have hope-so a nice riddle for you. > > Maybe all the answers are useful =93 let=C2=B4s collect them all: > > *** > > Yesterday I took off from a very remote /small /windy (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 sudd enly let us say medium or more shake and vibration. My immediate reaction wa s to go around and land immediately but abandoned because wind was so furiou s and I felt I cannot do that (a succesful landing). > > I decided to try to fly to the next possible sensible airfield EFHV which w as 10 minutes apart. > > 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 fi lter. Finally I noticed that when prop was in a climb mode (in my case 5400 r pm /Rotax 912S) and MAP around 20 inches I got quite a comfortable flying mo de and I headed straight home. My airspeed was w that selection about 110 kn ots but because of a strong headwind GS was only about 70 knots (wanted to b e clearly over the ground at 3000 ft because it was well over sunset and tot ally dark, yesterday we got sunset around 1600 Zulutime and time was well ov er 1630 when flying). > > 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 pwr i t was more vibra and when trying to pull less pwr same. I Followed a main hi ghway and decided to land there if feeling so. Cars there with lights are al most like a lighted runway... > > Finally landing to the EFTP flawlesly. > > *** > > 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 evidence but something anyw ay. I tried to fix it and had a test run. I elected to go to fly =93 h ey I am a test pilot who else =93 and She was better than ever! > > I managed to do 2 touches and goes when C172 did one with same runway. > > 140 knots during downwind makes me always happy. > > *** > > So =93 dear Ladies and Gentlemen =93 what was wrong? > > It would be nice and very life-useful to hear your opinions or guesses wha t was wrong. > > *** > > The Rules: one single guess per person, please. > > The Prize: The Best Guess will get a Very Special Xmas Present from Finlan d! > > *** > > I will let you know a solution after a week =93 be patient. > > Have a nice weekend and > > > > Cheers, Raimo Toivio > > <Europa%20A2A-ala2OK[1].png> > Europa XS Mono OH-XRT #417 > > Updated flight hours /landings: 258,3 > > 37500 Lempaala > FINLAND > > p +358-3-3753 777 > f +358-3-3753 100 > > toivio@fly.to > www.rwm.fi > >


    Message 15


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    Time: 11:42:30 AM PST US
    From: Tim Ward <ward.t@xtra.co.nz>
    Subject: Re: Heavy In-flight Vibration Riddle
    Raimo, The other is carb heat left on for take off? Cheers, Toby, Tim's other son Tim Ward 12 Waiwetu Street Fendalton, Christchurch, 8052 New Zealand. ward.t@xtra.co.nz Ph 64 3 3515166 Mob 0210640221 On 3/10/2011, at 4:58 AM, "Raimo Toivio" <raimo.toivio@rwm.fi> wrote: > All > > I have got plenty of good guesses via list and also direct. > Some of you have hoped I will not publish them with their names and do not worry I wont=C2=B4t. > > Graham =93 I /we got an empty message from you =93 please rety pe it =93 I am sure it will be a good info. > > One of you have guessed the problem was because a broken de-icing rubber i n the prop blade. That=C2=B4s good but unfortunately my Europa is so far sti ll missing de-icing systems totally. They would be soon very useful in Finla nd. > > *** > > No one has so far found a reason for my vibra. > > So there are still a possibility to get an Xmas packet from Finland. > I quarantee the shipment will be worth of making a good guess. > > *** > Tips: > > - the reason was off /on or black /white =93type and very easy to re pair; it was fixed in seconds. > - when finally found it was not invisible at all. > > Go On! > > Cheers, Raimo OH-XRT > > > > > From: Raimo Toivio > Sent: Saturday, October 01, 2011 10:44 PM > To: europa-list@matronics.com > Subject: Europa-List: Heavy In-flight Vibration Riddle > > All > > I have hope-so a nice riddle for you. > > Maybe all the answers are useful =93 let=C2=B4s collect them all: > > *** > > Yesterday I took off from a very remote /small /windy (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 sudd enly let us say medium or more shake and vibration. My immediate reaction wa s to go around and land immediately but abandoned because wind was so furiou s and I felt I cannot do that (a succesful landing). > > I decided to try to fly to the next possible sensible airfield EFHV which w as 10 minutes apart. > > 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 fi lter. Finally I noticed that when prop was in a climb mode (in my case 5400 r pm /Rotax 912S) and MAP around 20 inches I got quite a comfortable flying mo de and I headed straight home. My airspeed was w that selection about 110 kn ots but because of a strong headwind GS was only about 70 knots (wanted to b e clearly over the ground at 3000 ft because it was well over sunset and tot ally dark, yesterday we got sunset around 1600 Zulutime and time was well ov er 1630 when flying). > > 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 pwr i t was more vibra and when trying to pull less pwr same. I Followed a main hi ghway and decided to land there if feeling so. Cars there with lights are al most like a lighted runway... > > Finally landing to the EFTP flawlesly. > > *** > > 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 evidence but something anyw ay. I tried to fix it and had a test run. I elected to go to fly =93 h ey I am a test pilot who else =93 and She was better than ever! > > I managed to do 2 touches and goes when C172 did one with same runway. > > 140 knots during downwind makes me always happy. > > *** > > So =93 dear Ladies and Gentlemen =93 what was wrong? > > It would be nice and very life-useful to hear your opinions or guesses wha t was wrong. > > *** > > The Rules: one single guess per person, please. > > The Prize: The Best Guess will get a Very Special Xmas Present from Finlan d! > > *** > > I will let you know a solution after a week =93 be patient. > > Have a nice weekend and > > > > Cheers, Raimo Toivio > > <Europa%20A2A-ala2OK[1].png> > Europa XS Mono OH-XRT #417 > > Updated flight hours /landings: 258,3 > > 37500 Lempaala > FINLAND > > p +358-3-3753 777 > f +358-3-3753 100 > > toivio@fly.to > www.rwm.fi > >


    Message 16


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    Time: 12:54:18 PM PST US
    Subject: Re: Heavy In-flight Vibration Riddle
    From: Kevin Klinefelter <klinefelter.kevin@gmail.com>
    choke spring Kevin On 10/2/11, Tim Ward <ward.t@xtra.co.nz> wrote: > Raimo, > > The other is carb heat left on for take off? > > Cheers, > > Toby, > > Tim's other son > > Tim Ward > 12 Waiwetu Street > Fendalton, > Christchurch, 8052 > New Zealand. > > ward.t@xtra.co.nz > > Ph 64 3 3515166 > Mob 0210640221 > > > On 3/10/2011, at 4:58 AM, "Raimo Toivio" <raimo.toivio@rwm.fi> wrote: > >> All >> >> I have got plenty of good guesses via list and also direct. >> Some of you have hoped I will not publish them with their names and do not >> worry I wontt. >> >> Graham I /we got an empty message from you please retype it I am >> sure it will be a good info. >> >> One of you have guessed the problem was because a broken de-icing rubber >> in the prop blade. Thats good but unfortunately my Europa is so far still >> missing de-icing systems totally. They would be soon very useful in >> Finland. >> >> *** >> >> No one has so far found a reason for my vibra. >> >> So there are still a possibility to get an Xmas packet from Finland. >> I quarantee the shipment will be worth of making a good guess. >> >> *** >> Tips: >> >> - the reason was off /on or black /white type and very easy to repair; it >> was fixed in seconds. >> - when finally found it was not invisible at all. >> >> Go On! >> >> Cheers, Raimo OH-XRT >> >> >> >> >> From: Raimo Toivio >> Sent: Saturday, October 01, 2011 10:44 PM >> To: europa-list@matronics.com >> Subject: Europa-List: Heavy In-flight Vibration Riddle >> >> All >> >> I have hope-so a nice riddle for you. >> >> Maybe all the answers are useful lets collect them all: >> >> *** >> >> Yesterday I took off from a very remote /small /windy (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 landing). >> >> I decided to try to fly to the next possible sensible airfield EFHV which >> was 10 minutes apart. >> >> 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 20 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 headwind 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). >> >> 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 pwr >> it was more vibra and when trying to pull less pwr same. I Followed a main >> highway and decided to land there if feeling so. Cars there with lights >> are almost like a lighted runway... >> >> Finally landing to the EFTP flawlesly. >> >> *** >> >> 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 evidence but something >> anyway. I tried to fix it and had a test run. I elected to go to fly hey >> I am a test pilot who else and She was better than ever! >> >> I managed to do 2 touches and goes when C172 did one with same runway. >> >> 140 knots during downwind makes me always happy. >> >> *** >> >> So dear Ladies and Gentlemen what was wrong? >> >> It would be nice and very life-useful to hear your opinions or guesses >> what was wrong. >> >> *** >> >> The Rules: one single guess per person, please. >> >> The Prize: The Best Guess will get a Very Special Xmas Present from >> Finland! >> >> *** >> >> I will let you know a solution after a week be patient. >> >> Have a nice weekend and >> >> >> >> Cheers, Raimo Toivio >> >> <Europa%20A2A-ala2OK[1].png> >> Europa XS Mono OH-XRT #417 >> >> Updated flight hours /landings: 258,3 >> >> 37500 Lempaala >> FINLAND >> >> p +358-3-3753 777 >> f +358-3-3753 100 >> >> toivio@fly.to >> www.rwm.fi >> >> >


    Message 17


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    Time: 02:44:37 PM PST US
    Subject: Re: Heavy In-flight Vibration Riddle
    From: "europapa" <jubu@onlinehome.de>
    Don t want to thing about x-mes jet but nice game. A spark plug connector went of? Happy flying Juergen Read this topic online here: http://forums.matronics.com/viewtopic.php?p=353821#353821


    Message 18


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    Time: 06:02:27 PM PST US
    From: keith hickling <keithhickling@clear.net.nz>
    Subject: wheel to underside clearance not 2 but 5cm & wide tyre
    Thanks Raimo, My tyre has only a little rubbing from the brake caliper, and only a shallow groove after 220 hours and around 700 landings. But I am watching it carefully and will probably change the tyre soon. Keith Hickling, New Zealand. Keith, beware: my original surf&turf tyre /tire also rubbed to the brake caliber so much that I saw very soon during first 50 hrs (about 100 landings) fabrics in the bottom of that deep canyon on the side of that "aircraft" tire /tyre. Recommed: have a real aircraft tyre /tire like AirTrac or any but size 7x6! BTW, the rubbing rubber smells awful and has nothing to do w ac specs. Cheers, Raimo Toivio


    Message 19


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    Time: 07:18:53 PM PST US
    Subject: Re: Heavy In-flight Vibration Riddle
    From: "William Daniell" <wdaniell@etb.net.co>
    Something worked loose and vibrated in the slipstream - a landing light perhaps from your clue Will




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