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Drilling holes in A-909 counterbalance

Drilling holes in A-909 counterbalance full size

Put the counterbalance tube in place with nose skin to help align it. Drill the holes the the tube. Then rivet the tube to the A-904 ribs with blind rivets for now.

Drilling A-910 stiffeners to skins

Drilling A-910 stiffeners to skins full size

I had previously cut out the stiffeners. I now drill them to the skins.

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