Lance,
Thanks for a heads up on Service Bulletin #10; after checking I find my
port wing has the aileron closeout mis-located as described. The
prescribed "fix" will be problematic since I have already applied the
reinforcement bids at the hinge points....not sure how to proceed but I
appreciate your input.
Fred
On Tuesday, September 26, 2006, at 09:29 PM, Lance Sandford wrote:
> Fred
>
> Did you check if your wings were part of the bodgey batch affected by
> the enclosed service bulletin.
> Good to hear you getting something done on your own toy for a change.
>
> I am on light duties at the moment, pottering around with the
> instrument panel. Managed to twist my knee while doing the lay-ups on
> the rear bulkhead to fuselage join. The baggage bay is no place for a
> 6 2 oldie. Makes me very glad I did a splash mold on top of the mass
> balance weight containment box etc, while I had the top off.
>
> Regards
>
> Lance Sandford in OZ
>
>>
>>
>> Gentlemen,
>>
>> First, it's inspiring to read about flying experiences w/ our
>> wonderful little birds...especially to one who has only recently been
>> able to get down to some serious work on his XS mono kit. Care to
>> take a stroll down memory lane?
>>
>> I've checked the archives on the subject of fitting the ailerons to
>> the wing and found no previous posts which deal with the particular
>> problem I've created for myself...indulge me for a moment.
>>
>> Fitting the starboard aileron to the wing seemed like a piece of
>> cake...plenty of travel, no rubbing or snags.
>>
>> The port aileron has been a somewhat different story...the first
>> thing I noticed after clecoing it in place was significant rubbing of
>> the top surface on the trailing edge closeout. Then I noticed that
>> the trailing edge of the port aileron was 1/8" short of the trailing
>> tip of the wingtip, whereas the starboard aileron was 3/8" short of
>> the wingtip.
>>
>> I also noticed that the offset between the flap closeout and the
>> aileron closeout on the starboard wing was 1 inch but on the port
>> wing it was 1.5 inches.
>>
>> The net result of these differences appeared to be that the starboard
>> wing/aileron would have between 1/4 and 1/2 inch more chord that of
>> the port wing. I found no references in the manual which noted this
>> as a design feature; after taking numerous comparative measurements,
>> it appeared that the aileron closeout and hinge line of the port wing
>> was between 1/4 and 1/2 inch further aft than on the starboard wing.
>> It appeared to me that a bit of trimming would equalize the wing
>> area, and by moving the port aileron forward, I would reduce the
>> rubbing between it and the closeout.
>>
>> Accordingly, I proceeded to trim (first) the lower trailing edge of
>> the port wing and re-established the hinge rebates, trial fitted the
>> aileron, and subsequently trimmed back the top trailing edge of the
>> closeout. After remeasuring, I found I had two wing/ailerons of the
>> same size.
>>
>> Ahh...that pesky law of unintended consequences!...for now I find
>> that with "up" aileron, the leading edge of the aileron hits the
>> inside surface of the closeout...and...I do not have the required
>> amount of travel with "up" aileron limited to about 20 degrees.
>>
>> To dig myself out of this hole, I propose to shave back a portion of
>> the leading edge of the aileron which is buried in the wing trailing
>> edge closeout and re-glass as necessary.
>>
>> At this point, I'm wondering if I've been too anal retentive about
>> having my wing/ailerons match (?)... whether others have noticed
>> similar variations and let them be (?)...or whether my "fix" seems
>> reasonable (?). Comments Please!
>>
>> Fred
>> A194
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