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Hi Hartmut- looks like many,many of us have experienced ail. flutter.Yes it does creep up on you. I was flying early morning, in calm air.Thought I had carb ice!, slowed down & flutter went away.Of course it came back,like you said, you can feel it thru the airframe & see the ail. Flutter!! Part of a temp fix slow down & if you are cross-country you could shorten ail push rods by 1/2-1 turn.This puts a preload on ail's>Of course this shade tree fix should be redone asap by replacing worn parts in ail sys & rerig. replacing An bolts with close tolerence bolts will take out some play in sys also. Ted Sac,Ca.[Original Message] > From: Hartmut <[EMAIL PROTECTED]> > To: Darwin Girdauckis <[EMAIL PROTECTED]> > Cc: Coupetech <[email protected]>; [email protected] <[email protected]> > Date: 1/9/03 10:13:24 PM > Subject: Re: [COUPERS-TECH] Re: [COUPERS-FLYIN] flutter > > ----[Please read http://ercoupers.com/disclaimer.htm before following any advice in this forum.]---- > > > Darwin. > Total time on my Coupe is roughly over 2000 hours, but like Ed B. sai= > d , that does not mean much. Most of > the play came due to the corroded and worn rod ends which go to the a= > ailerons. I think the flutter then > messed up the other two on the right side, plus the roller bearings. = > When you ever experience flutter, > don't hesitate to fix it right away, it can only become more expensive= > e very quick. > I also replace the outer hinge on my last annual , because I could WA= > etch the outer part of the aileron > flutter around. That did not do the real bad flutter , but was not nib= > ace to watch. > The rod ends are actually indestructible when properly maintained, Abu= > T very much to my frustration I found > that the required lubrication of those rod ends happened only on paper= > R, if so . > I am more and more convinced that only the owner assisted annual is W= > North to be called an annual inspection > (depending on owner). > > If you find the play in the controls unsatisfactorily then check the = > rod ends on the ailerons, the only > ones you can take out with the wings on and replace the rod ends if F= > Sound corroded, pitted or otherwise > worn. > > Hartmut > > Darwin Grackles wrote: > > > ----[Please read http://ercoupers.com/disclaimer.htm before follow= > nag any advice in this forum.]---- > > > > Hartmut! > > How many hours flying time on your coupe when this flout= > ter started & what serial #? > > Our 415c now has 1590 hrs since new, no sighn of flutter but we wi= > ll be getting a dynamic balance > > job done soon as there is a fair amount of engine vibration. We alr= > eady put new engine mounts in. > > Thanks > > Darwin > > > > Hartmut wrote: > > > > > ----[Please read http://ercoupers.com/disclaimer.htm before follo= > wing any advice in this forum.]---- > > > > > > Hi list. > > > > > > I had flutter all last flying season. It started occasionally and= > got > > > worse over time. > > > It's like Ed describes it. The immediate remedy is intuitive. You= > start > > > steering and the flutter disappears. > > > My flutter started at speeds above 110 MPH. > > > I knew it's the play in the controls. I just did not know where e= > xactly. > > > > > > Now, after pulling the wings for the Center section inspection (y= > es, we > > > found corrosion), I found ALL!!!! elements of the right aileron c= > ontrol > > > worn. > > > I replaced all rod ends and also the expensive bearings in the ou= > ter > > > aileron bellcrank. > > > In case I ever get the plane back into flying condition I will se= > e if > > > the flutter is gone. > > > But I am pretty sure of it. By the way. I had the flutter at almo= > st all > > > of my last flights and got pretty much used to the annoying washb= > oard > > > feeling. I had time to experiment a bit and can assure that the w= > ing > > > does not fall off the moment you're experiencing it , nor does th= > e > > > aileron. So no panic, do some gentle turns and slow down. That's = > all to > > > be out of it. > > > > > > Hartmut > > > > > > Ed Burkhead wrote: > > > > > > > ----[Please read http://ercoupers.com/disclaimer.htm before fol= > lowing any advice in this forum.]---- > > > > > > > > > > > > > > > > ----[Please read http://ercoupers.com/disclaimer.htm before fol= > lowing any advice in this forum.]---- > > > > > > > > > > > > > > > > JMILLBYZ asked: > > > > > > > > > anyone ever experienced aileron flutter? > > > > > > > > Yep.I did once when I was doing a gentle dive to approach Vne.A= > bout > > > > 135 or a little bit more, it felt like I had hit a washboard ro= > ad.I > > > > figured it out in only about one second and immediately started= > a > > > > series of left/right turns to load the ailerons and the flutter > > > > immediately stopped. > > > > > > > > A number of people have told me I was very lucky I didn=EDt hav= > e the > > > > aileron separate from the plane.This is true.I can=EDt tell you= > how I > > > > figured it out and did the correct thing so quickly ? maybe I h= > ad > > > > pre-loaded the solution in the back of my mind. > > > > > > > > Upon arrival home, we found there was way too much play in the = > aileron > > > > system.We tightened it up with washers and when I had a chance = > ($), I > > > > replaced all the rod ends.Come to find out the rod ends aren= > =EDt that > > > > expensive and I should have replaced them much sooner. > > > > > > > > Ed Burkhead > > > > > > > > http://edburkhead.com/ > > > > > > > > [EMAIL PROTECTED] > > > > > > > > -----Original Message----- > > > > From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] > > > > Sent: Thursday, January 09, 2003 4:13 PM > > > > To: [email protected] > > > > Subject: [COUPERS-FLYIN] flutter > > > > > > > > anyone ever experienced aileron flutter? > > > > > > > > =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= > =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= > =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= > =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D > > > > To leave this forum go to: http://ercoupers.com/lists.htm > > > > > > > > > > > > > > > > > > > > =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= > =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= > =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= > =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D > > > > To leave this forum go to: http://ercoupers.com/lists.htm > > > > > > > > > > > > > > > > > > > > > > =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= > =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= > =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= > =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D > > > To leave this forum go to: http://ercoupers.com/lists.htm > > > > =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= > =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= > =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= > =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D > > To leave this forum go to: http://ercoupers.com/lists.htm > > > ========================================================================== == == > To leave this forum go to: http://ercoupers.com/lists.htm > > --- Mary Lechner --- [EMAIL PROTECTED] --- EarthLink: The #1 provider of the Real Internet. ========================================================================== ==== To leave this forum go to: http://ercoupers.com/lists.htm
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