Since I am installing a flop tube in each tank, I had to fabricate a few pieces for that modification. I fabricated a trap door (check valve) on the number #2 rib so that fuel will freely flow into the bay except for when you are in an attitude where the fuel would flow out after an extended period in that attitude. In this case the trap door would restrict the amount of fuel flowing out of the inboard bay. I also had to fabricate a plate that would cover a lightening hole in the rib. There was an anti hangup bracket installed as well that will prevent the flop tube from becoming stuck between the stiffener and the #2 rib. I was only able to fabricate the parts for the left fuel tank since there was a lot of thinking going into the parts before I made them. The right tank will go faster. Hopefully.
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