Dave, mine is a new build and all is very tight back there with the
modified Spar. I am fettling the right wing top surface at the moment but
can see I will need to shave some material off the Aileron self connect, I
believe I need to anyway to facilitate the main pin.
I have a borescope kit and will try to get pictures.
regards
Alan Twigg
Motorglider Mono
Kit 463 and getting closer.
On Fri, Dec 6, 2013 at 4:03 PM, djaflyact <djaflyact@gmail.com> wrote:
>
> Well, I found the problem with interference with my right wing fit. I had
> forgotten (until I pulled the left wing out again) that I had a swelling
> fuel tank problem early on in the flying of the airplane. The brackets that
> hold the tank back worked great - in the area of the bracket, but in
> between the tank swelled until it rubbed on the aileron cross link between
> the CS08 arms. My solution at the time was to move one end of the cross
> link forward of the CS08. That allowed it to clear the tank, but that is
> now the reason I cannot get the right wing to fit. It has to go back to the
> original position.
>
> I've got two choices: The cross link rubs the fuel tank or the I fly with
> only one wing.
>
> Since there is no reasonable choice there, I think there are also now 2
> possibilities: I move the fuel tank wall back or I bend the cross link bar
> to clear the swollen tank.
>
> Right now, I only see the arcing of the cross link as the answer. If it is
> not straight, it will not be as strong in compression. I doubt the loads
> are very high, but there is the issue of jammed controls and the ability to
> provide force in a situation like that.
>
> Would I make a contestant arc in the tube?
> Would I make a joggle in each end so that most of the rod is straight?
> Would I replace it with steel?
> Would I fill it with something like epoxy to make it stronger?
> Can the tank wall be pushed back? I can only imagine coating it with
> fiberglass or carbon cloth and some sort of hydraulic press holding it
> while it cures (I doubt this is possible).
>
> Has anyone experienced this issue with the fuel tank?
>
> Of course, the temperatures here have dropped to 0F at night, which is
> making progress more difficult. I am getting close, however.
>
>
> Thanks,
>
> Dave
> A227
> Mini U2
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=414977#414977
>
>
|