Monday, January 16, 2012

Left elevator (cont.)

With the stiffeners in place and the skeleton riveted together, it was time to bend the trailing edge.  This process is much easier the second time, as you're not as concerned about messing it up.  I made the bend with my wood bending brake, and the skin rests nicely on the skeleton with no clecos installed.  With the trailing edge finished, I was able to bend the tabs on the elevator for the trim tab opening.  After a little practice, I placed a wedge inside the skin with another wedge on top of the skin, clamped the whole assembly to the workbench, and made the first bend of the lower tab.  Then the top tab was bent, and the remaining rivets were squeezed. 

After trailing edge is bent, the skin rests on the front spar
Practice bend on piece of scrap aluminum
First tab bend (bottom) on elevator
Top and bottom bends finished - ready for rivets
Ready to squeeze perimeter rivets
Squeezing outboard rivets
Counterbalance weight attached
Left elevator main structure complete
Left and right elevators side by side for the first time - very cool !

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