One idea I had to help with flutter was to NOT cut the aileron free at the
tip. Use the built in twist factor to you advantage. I have been told
by others that this works well.
.........bc ([EMAIL PROTECTED]
http://www.widomaker.com/~conk
Williamsburg, VA 23185
On Fri, 3 Jan 2003, Monkey King wrote:
> On Fri, 3 Jan 2003, Bill Swingle wrote:
>
> > >>does the 'good' outweigh the difficulty?
> >
> >I was hoping you wouldn't ask. I'm not qualified to give a rigorous answer.
> >But, here's my layman opinion: For most guys no. I don't think it's usually
> >worth doing it. Which is why much of the time a builder will just stick with
> >constant chord surfaces. It' tough to argue with the convenience of
> >commercially available materials.
> >
> >However, on a speed plane (depending on control surface rigidity) it can be
> >an important factor in avoiding flutter.
>
> On an earlier plane, I had a problem with both flutter and a pronounced
> tip stall at full throw. I'm trying to fix that. A tapered aileron would
> seem to fix that.
>
> -J
>
> >
> > >>And, is the effect noticable?
> >
> >For most guys no. Personally, I like lots of roll authority and tend to over
> >size mine any way. But I don't fly speed planes so my sloppy building
> >doesn't risk flutter.
> >
> >The choice of control surface width is very complicated. But a ballpark
> >value is usually good enough to achieve decent performance. Which is why I
> >originally said 25%-30%. They're commonly used values that do fairly well.
> >To examine the subject more closely, we'll need to consult the likes of
> >Blaine, Joe, etc...
> >
> >Bill Swingle
> >Janesville, CA
> >[EMAIL PROTECTED]
> >
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>
>
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