Europa-List Digest Archive

Sun 10/21/12


Total Messages Posted: 9



Today's Message Index:
----------------------
 
     1. 03:36 AM - Re: LG08 bushes (Kingsley Hurst)
     2. 07:08 AM - Re: Stabalator Flutter (Bud Yerly)
     3. 08:35 AM - Re: Stabalator Flutter (Alan Carter)
     4. 01:52 PM - Paint edge around the windows (flying farmer)
     5. 02:22 PM - Aerial testing and fuel smell (William Bliss)
     6. 02:28 PM - upholstery (William Bliss)
     7. 02:48 PM - 914 surging/loss of power (h&jeuropa)
     8. 03:39 PM - Re: 914 surging/loss of power (Robert Borger)
     9. 03:44 PM - Re: 914 surging/loss of power (Robert Borger)
 
 
 


Message 1


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    Time: 03:36:46 AM PST US
    Subject: Re: LG08 bushes
    From: Kingsley Hurst <kingsnjan@westnet.com.au>
    Very good of you thanks Nev. I wait with baited breath! I polished the wings today so guess I'll have to keep going now while I wait ! Think we will have to rent out the room we have been holding for you if you d on't come soon! Best regards Kingsley Do not archive. Sent from my iPhone On 21/10/2012, at 7:30 AM, Neville Eyre <neveyre@aol.com> wrote: > Hi Kingsley, > If you are not going to do the fix in the next day or so, I will measure m y kit of bits / tools I use for this job on monday, and post a brief guide o n how to do it, with a hoist, allow a couple of hours to do it, no need to r emove the wheel or disturb the brakes. > Cheers, > Nev > > > > -----Original Message----- > From: Kingsley Hurst <kingsnjan@westnet.com.au> > To: europa-list <europa-list@matronics.com> > Sent: Sat, 20 Oct 2012 21:56 > Subject: Re: Europa-List: LG08 bushes > u> > > Dave / Carl > > Many thanks for your replies. Your advice to note the orientation of the > suspension block is noted thanks Carl and will be heeded. > > Cheers > Kingsley > > Do not archive > > arget=_blank>http://www.matronics.com/Navigator?Europa-List > p://forums.matronics.com > blank>http://www.matronics.com/contribution > > > > > ========================== ========= ========================== ========= ========================== ========= ========================== ========= >


    Message 2


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    Time: 07:08:04 AM PST US
    From: "Bud Yerly" <budyerly@msn.com>
    Subject: Re: Stabalator Flutter
    Alan, I noted no answer to your question on what is flutter. Attached are some video sites for you to look at. In engineering, vibration and aeroelastic concerns on fatique and flutter are very serious studies. Please review: <http://www.aircraftdesigns.com/aircraft-flutter-analysis.html>http://www .aircraftdesigns.com/aircraft-flutter-analysis.html<http://www.aircraftde signs.com/aircraft-flutter-analysis.html> http://www.youtube.com/watch?v=YIHam_isyI8&feature=related I became interested in the subject when government cuts forced us to go to a cheaper hydraulic line in the F4. We were seeing numerous problems with hydraulic failures using the aluminum lines attached. Without hydraulic pressure, the flight controls did not lock in position in certain failures (breaking of the control pack) and controls would begin to buzz at high speed. Luckily the aircraft wing was brutally strong, we had redundant hydraulic controls and with only one hydraulic failure we pilots normally slowed down, declared an emergency and returned to base without incident. One crew lost all hydraulic control on one wing and the back seater could see the aileron flopping about. They slowed to 240 knots and the flutter stopped but hinge and trailing edge damage was evident in only a few seconds of flutter. Later I was involved in a local Twin Commanche incident where rivets were popped all over the stab and I was asked to look at it. See the video below. The type of flutter is evident on stabilators as well as conventional horizontal control surfaces which are not balanced. http://www.youtube.com/watch?v=iTFZNrTYp3k<http://www.youtube.com/watch ?v=iTFZNrTYp3k> ----- Original Message ----- From: Alan Carter<mailto:alancarteresq@onetel.net> To: europa-list@matronics.com<mailto:europa-list@matronics.com> Sent: Monday, October 15, 2012 4:21 PM Subject: Europa-List: Stabalator Flutter <alancarteresq@onetel.net<mailto:alancarteresq@onetel.net>> Hello ALL. This question is nothing to do with how to fix the Toque Tube and stop flutter. Ok i know stabalators are more efficient than the elevator, and they can,t Rime ice up like an elevator and i have flow many aircraft with stabalators and i don,t like them. Question is what is Flutter only?? I keep hearing the word Stabalator Flutter, I have the obvious idea as to what happens but would like to know more, maybe someone has experienced it. Do the Stabalators flutter independently, or both up and down together, How fast is this fluttering, How is the on-set noticed in the cockpit, Can you feel it through the joy stick,( of course you can, but a tell tell indication maybe in some flight attitude or configuration well before an event). Is it controllable, What would be the position held by the stabalators if you had no control. ete,ete,ete, agian not a test just something we can all chew over. If anyone has experienced flutter please tell us, Alan [/u] Read this topic online here: http://forums.matronics.com/viewtopic.php?p=385392#385392<http://forums .matronics.com/viewtopic.php?p=385392#385392> http://www.matronics.com/Navigator?Europa-List<http://www.matronics.com/N avigator?Europa-List> http://www.matronics.com/contribution<http://www.matronics.com/contributi on>


    Message 3


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    Time: 08:35:55 AM PST US
    Subject: Re: Stabalator Flutter
    From: "Alan Carter" <alancarteresq@onetel.net>
    Wow Bud, that,s pretty scary stuff, have a lot of hours on Twin Coms. glad i knew nothing about flutter then, what happened to it in the video. Well i got the first bit right, slow down, but have not that brutal tail-plane you mention, only have a foam one!, and yes i do have a hang up on tail planes maybe its because i can,t see it. There have been some excellent ideas posted on MOD 73 . how to elimination play and wear in the Toque tube, and this question is just an extension of that topic, so hoping for some airman-ship replies also. Regards Alan Read this topic online here: http://forums.matronics.com/viewtopic.php?p=385727#385727


    Message 4


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    Time: 01:52:12 PM PST US
    Subject: Paint edge around the windows
    From: "flying farmer" <rpwheelwright@yahoo.co.uk>
    Fellow Europas Does anyone have any suggestions for finishing the Paint edge around the windows? As the paint does not bond well to the Plexi Glass even after scuffing the surface. Richard Wheelwright G-IRPW Read this topic online here: http://forums.matronics.com/viewtopic.php?p=385743#385743


    Message 5


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    Time: 02:22:13 PM PST US
    From: "William Bliss" <william@wbliss.co.uk>
    Subject: Aerial testing and fuel smell
    On a flight to the Isle of Bute today I found that the radio was intermittently failing to receive and transmit. Not a power problem. I have heard that Europa aerials can be difficult (earth?). How is it best to test and rectify? Good news is that the fuel gauge sender unit leak has been stopped by fitting a 4mm thick nitrile cork gasket ontop of a thin layer of fuel tank sealant William Bliss ----- No virus found in this message. Checked by AVG - www.avg.com


    Message 6


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    Time: 02:28:30 PM PST US
    From: "William Bliss" <william@wbliss.co.uk>
    Subject: upholstery
    Dear all again The upholtsery in G-WUFF is coming adrift - and will be more so after I have made a few alterations. Can anyone recommend a UK based upholsterer? North would be better. Thanks William Bliss ----- No virus found in this message. Checked by AVG - www.avg.com


    Message 7


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    Time: 02:48:02 PM PST US
    Subject: 914 surging/loss of power
    From: "h&amp;jeuropa" <butcher43@att.net>
    We are stuck in Lamar CO with 914 problems. Have spent most of the day talking to Bud for ideas. Flew about 4 hours yesterday, stopped for fuel and lunch. Takeoff was normal but when leveled off, noted fuel flow was only 3.5 gph, not the expected 5.5. Increasing throttle gave more MP but same fuel flow. Engine felt rough or different than normal. Landed and inspected under cowl - no problem noted. We had just gotten fuel so thought maybe that caused it. Tried flight this morning when it was cooler, had to make emergency landing because power dropped soon after takeoff. No vibration, just wouldn't climb. Found that our fuel tank vent was plugged, cleared it, ran ground tests & Jim did 20 minute solo test flight with no problem. Loaded plane & departed again, engine power dropped just after gear retract, made another emergency landing. (Obvious answer is don't let Heather in the plane [Wink] ) At this point we're thinking pull carbs for rebuild. Any other ideas? Thanks, Jim & Heather N241BW Read this topic online here: http://forums.matronics.com/viewtopic.php?p=385747#385747


    Message 8


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    Time: 03:39:32 PM PST US
    Subject: Re: 914 surging/loss of power
    From: Robert Borger <rlborger@mac.com>
    Jim & Heather, I don't know if this has been suggested by anyone else, but check the carb bowl pressurization lines from the air box to the carbs. If there's a leak somewhere along there, it could prevent your carbs from being able to deliver sufficient fuel under boost. In the attached PDF file these lines are RED, GREY/WHITE STRIPE and YELLOW. Check VERY carefully! I had two hidden that took three or four searches to locate. Look carefully at any connection from line to fitting. If that all checks out OK, then you might also check the carb bowl pressure shuttle (92 in the PDF) which transfers from lower pressure input to higher pressure input when you go to high boost. This can be checked by making the purple connection. Disconnect the YELLOW line from the shuttle and the RED line from the airbox. Connect the YELLOW line to the airbox where the RED line was removed. This information was provided by the folks up at Rotax Owner dot Com and they said that it will not harm anything to run like this till you can get home and get a replacement shuttle. I hope this helps. Good luck! Blue skies & tailwinds, Bob Borger Europa XS Tri, Rotax 914, Airmaster C/S Prop. Little Toot Sport Biplane, Lycoming Thunderbolt AEIO-320 EXP 3705 Lynchburg Dr. Corinth, TX 76208-5331 Cel: 817-992-1117 rlborger@mac.com On Oct 21, 2012, at 4:47 PM, "h&amp;jeuropa" <butcher43@att.net> wrote: We are stuck in Lamar CO with 914 problems. Have spent most of the day talking to Bud for ideas. Flew about 4 hours yesterday, stopped for fuel and lunch. Takeoff was normal but when leveled off, noted fuel flow was only 3.5 gph, not the expected 5.5. Increasing throttle gave more MP but same fuel flow. Engine felt rough or different than normal. Landed and inspected under cowl - no problem noted. We had just gotten fuel so thought maybe that caused it. Tried flight this morning when it was cooler, had to make emergency landing because power dropped soon after takeoff. No vibration, just wouldn't climb. Found that our fuel tank vent was plugged, cleared it, ran ground tests & Jim did 20 minute solo test flight with no problem. Loaded plane & departed again, engine power dropped just after gear retract, made another emergency landing. (Obvious answer is don't let Heather in the plane [Wink] ) At this point we're thinking pull carbs for rebuild. Any other ideas? Thanks, Jim & Heather N241BW


    Message 9


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    Time: 03:44:52 PM PST US
    Subject: Re: 914 surging/loss of power
    From: Robert Borger <rlborger@mac.com>
    Jim & Heather, Also, check the pressure line from the airbox to the fuel pressure regulator. This keeps fuel pressure above airbox pressure ensuring sufficient fuel pressure to overcome boost pressure. As with the other lines, check thoroughly where the rubber hose meets a connector. These areas are prone to splitting. Blue skies & tailwinds, Bob Borger Europa XS Tri, Rotax 914, Airmaster C/S Prop. Little Toot Sport Biplane, Lycoming Thunderbolt AEIO-320 EXP 3705 Lynchburg Dr. Corinth, TX 76208-5331 Cel: 817-992-1117 rlborger@mac.com On Oct 21, 2012, at 4:47 PM, "h&amp;jeuropa" <butcher43@att.net> wrote: We are stuck in Lamar CO with 914 problems. Have spent most of the day talking to Bud for ideas. Flew about 4 hours yesterday, stopped for fuel and lunch. Takeoff was normal but when leveled off, noted fuel flow was only 3.5 gph, not the expected 5.5. Increasing throttle gave more MP but same fuel flow. Engine felt rough or different than normal. Landed and inspected under cowl - no problem noted. We had just gotten fuel so thought maybe that caused it. Tried flight this morning when it was cooler, had to make emergency landing because power dropped soon after takeoff. No vibration, just wouldn't climb. Found that our fuel tank vent was plugged, cleared it, ran ground tests & Jim did 20 minute solo test flight with no problem. Loaded plane & departed again, engine power dropped just after gear retract, made another emergency landing. (Obvious answer is don't let Heather in the plane [Wink] ) At this point we're thinking pull carbs for rebuild. Any other ideas? Thanks, Jim & Heather N241BW Read this topic online here: http://forums.matronics.com/viewtopic.php?p=385747#385747




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