Saturday, August 8, 2009

Right Fuel Tank Progress

Today we continued working on the right fuel tank.  First we finished match drilling the "Z" attach brackets.  Next we installed the rear baffle and temporarily attached the "Z" attach brackets.  Once that was done we installed the fuel tank on the wing and match drilled the "Z" brackets to the main spar.  After that we checked the wing for twist.  The plans allow for a 3/32" difference.  Well, after careful measuring and confirmation we determined that our difference was 0/32".  Not too shabby!  Next we took a divide and conquer approach, Darren match drilled the fuel tank ribs and skins while I manufactured (cut out of aluminium angle, drilled and polished the edges) an attach bracket.  Finally we countersunk the tank skin where the rear baffle gets attached.  We called it a day at that point. 

The wing with the fuel tank cleco'd into place. 


A close-up of the tank. 


 Darren match drilling the tank skin / rear baffle.


Scott taking a turn at match drilling. 

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