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RV-7 Construction Log
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Date:  3-17-2013
Number of Hours:  0.00
Manual Reference:  
Brief Description:  Conduit, Ailerons, and one Flap - Part 2

(Continued from the Previous Entry)

In the first iteration of clamping the flap in place, I couldn't get the holes in the flap brace to line up with the holes in the bottom skin (hinge is undrilled, so clecos can't be used before match drilling). To remedy this, I removed the flap and tweaked the angle of the brace coming off the rear spar until the holes lined up with the bottom skin without holding pressure on the brace.

With the flap clamped in proper alignment with the aileron, the aft edges of the gaps between barrels in the hinge came out about 1/32" aft of the trailing edge of the bottom skins. This made me a bit concerned about edge distance for rivet holes to the forward edge of the hinge, but a few measurements verified sufficient edge distance of just over 0.200 (0.188 required).

Karen sped up the drilling process for me by clecoing every hole after I drilled it. I kept the drill in one hand and a tube of Boelube in the other. We had the drilling done in about 15 minutes. I then removed the flap and deburred the hinge.

I got the aileron hung on the right wing, including the inboard spacer (0.620"), then realized that with the wing clamped in the rotating fixture, I didnt have access to the forward tooling hole for alignment, so Karen helped me move the wing to the cradle. By then it was time for corned beef and cabbage...

Rivets Today: 10
Rivets Total: 7314
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A 1

A 1" cleco clamp at each end of the hinge was adequate to hold the flap in place to start drilling.

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Same fore/aft hinge position on the inboard end, too.

Same fore/aft hinge position on the inboard end, too.

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Left flap drilled to the wing.

Left flap drilled to the wing.

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