Today's Message Index:
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1. 07:32 AM - Re: Aileron balance (ashontz)
2. 07:37 AM - Re: Aileron balance (ashontz)
3. 03:25 PM - Chat reminder for the "Digesters" (George Race)
Message 1
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| Subject: | Re: Aileron balance |
There is no evidence, til you test each and every plane individually for flutter.
An agreed upon way per the EAA (Tony Bingelis) to minimize the chance of flutter
is to at least statically balance your ailerons 100%.
Jaybannist(at)cs.com wrote:
> Andy,
>
> Where is the evidence that ANY of this is needed?
>
> Jay in Dallas
> Do not archive
>
>
> "ashontz" wrote:
>
>
> >
> >
> > 1) to apparently tune out an resonant frequencies that could allow for flutter.
> >
> > 2) when the plane bounces due to turbulence, the non-balanced weight aft of
the hinge will flop up and down, possibily inducing flutter. If it's balanced,
the entire aileron including the balance, moves up or down in unison, not around
the pivot.
> >
> >
> > Jaybannist(at)cs.com wrote:
> > > OK, I guess I missed something. With all this e-talk about how to balance
the ailerons, there has got to be a good reason one would want to balance the
ailerons. Just what is that reason? Not speculation, not a guess, not conjecture;
a REASON. PLEASE!
> > >
> > > Jay in Dallas
> >
> >
> > --------
> > Andy Shontz
> >
> > do not archive
> >
> > CH601XL - Corvair
> > www.mykitlog.com/ashontz
> >
> >
> >
> >
> > Read this topic online here:
> >
> > http://forums.matronics.com/viewtopic.php?p=183162#183162
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
>
--------
Andy Shontz
do not archive
CH601XL - Corvair
www.mykitlog.com/ashontz
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=183653#183653
Message 2
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| Subject: | Re: Aileron balance |
The folks at AMD have tested the aircraft through a
complete Part 23 flight test program, which includes dives to Vne; is that
enough to demonstrate that there will be no flutter?
Exactly, flutter issues are on a plane by plane basis. Apparently that perticular
installation, brnad new, with everything tight as a drum did not experience
flutter. It's not a design thing, it's all the other factors that go into possibly
leading to flutter. Every plane from the same set of plans is different,
because all planes are handmade, or at least hand assembled.
jmaynard wrote:
> On Wed, May 14, 2008 at 06:52:03PM -0400, Juan Vega wrote:
>
> > you are assuming the accident was from Flutter, no one has said any of
> > the accidents were flutter, just speculation from a bunch of builders at
> > this point.
> >
> >
>
> I'm making no assumptions other than, at this point, flutter is a possible
> explanation for the crash. If it's not, that's fine, but why isn't it?
>
>
> > Flutter should not be an issue at all when flown at cruise speed. I have
> > my cables tensioned according to plans, and I believe you are all barking
> > up the wrong tree.
> >
> >
>
> I'm going to assume that that will be true of my aircraft when I take
> delivery, as well; it's not reasonable to expect that AMD would screw up
> somthing that's that vital. Is that enough to guarantee that flutter will
> not be an issue? The folks at AMD have tested the aircraft through a
> complete Part 23 flight test program, which includes dives to Vne; is that
> enough to demonstrate that there will be no flutter?
>
> If that's the case, how can we explain the neatly missing aileron on the
> Yuba City aircraft?
>
>
> > Some guy that saw tin canning and misstook it for flutter does not make
> > for a reason to speculate the flutter was a cuase of the accident. It may
> > have been if the guys flying it 1- never retensioned their cables and 2-
> > flew past reasonable parrameters.
> >
> >
>
> I'm not aware of someone that mistook tin canning for flutter. What I recall
> started that discussion was the picture of the wing with the aileron not
> attached, no rivets present, and no skin torn. How could that happen?
>
>
> > I am done on this whole issue. You guys need to focus on having fun
> > building your planes again, if that is what you guys in this site are
> > really doing.
> >
> >
>
> I'm not so patiently awaiting AMD to finish building mine. Wen I take
> delivery, I'm going to put at least 20 (and probably more, the way my plans
> have changed) hours on it in the first week or two. I wouldn't do that if I
> thought it was going to kill me. Even so, I think I, and everyone here, is
> entitled to understand the problem - whatever it may be - and what it would
> take to fix it.
> --
> Jay Maynard, K5ZC http://www.conmicro.com
> http://jmaynard.livejournal.com http://www.tronguy.net
> Fairmont, MN (FRM) (Yes, that's me!)
> AMD Zodiac CH601XLi N55ZC (ordered 17 March, delivery 2 June)
--------
Andy Shontz
do not archive
CH601XL - Corvair
www.mykitlog.com/ashontz
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=183654#183654
Message 3
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| Subject: | Chat reminder for the "Digesters" |
Please join us for our Monday evening chat room starting around 8:00 PM
Eastern Time.
<http://www.mykitairplane.com/chat/> http://www.mykitairplane.com/chat/
George
CH-701 Registered as N73EX
Do Not Archive
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