I guess the question is: when built to plans, do those brackets allow any 
movement up and down. 

It looks like the boomerang shaped one is so long from where it attaches that 
it would not provide enough support to remain rigid under any kind of load.

Larry&Sallie Flesner <flesner at frontier.com> wrote:

>
>>
>>The control junction between the stubby wings and the aileron appears
>to be
>>  making a slight elliptical pattern when the ailerons are moved, as
>if the
>>bottom  half of the bracket supporting the bell crank was wobbling a
>little.
>>
>>Todd Thelin
>++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
>
>When building that part of my KR, I was a bit concerned about the 
>lightweight aluminum brackets used on the aileron bellcranks.  I 
>reproduced them with .125 aluminum angle stock.  Very rigid, no 
>movement.  450+ hours of flight time.  I also added a "bearing" and 
>put cable attach in "double sheer".
>
>http://myplace.frontier.com/~flesner/02092587.jpg
>
>Larry Flesner
>
>
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