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Sunday, November 15, 2009

Even More Tank Prep

I have the left tank completely ready for the Pro-Seal treatment except for the final Deburring and Dimpling, oh, and then scuffing and cleaning.  See, it is never over.  Always more to do.

Here are some photos of the last bit of work on the left tank, final drilling the tank screw attach holes to #19

Here is the fuel drain at the lowest point in the Tank.   Also, a picture from inside the tank, you can see the flop tube anti-hang up strip attached to the second most rib and the inner most tank stiffener.

Also, here is a look at the "final" right and left fuel pick ups.  Flop tube pictured on the right, standard on the left.  I went with both options for a couple of reasons.  One, is weight..  Two flop tubes would have weighed more, and you really only need one if I decide I want sustained inverted flight options on the engine.  Second is reliability; the flop tube moves and the standard pickup doesn't (need I say more?)  I will manage fuel such that the flop tube tank is always used first.  On my fuel selector valve I am going to label it as such:   LEFT TANK - AERO/RIGHT TANK - NORM

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