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RV-7A Construction Log
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Date:  2-24-2009
Number of Hours:  2.00
Manual Reference:  
Brief Description:  Flaps - Pulled blind rivets spar to ribs

After riveting the ribs to the skin I cut the hinge to length and clecoed the spar in place. First rivets are the pulled rivets between spar and ribs. It was difficult to get the rivet gun under the top skin. You can see my method was to use a block of wood to push it up just enough to get the rivet gun under it. The block keeps from pinching or wrinkling, or denting the skin. Then on the inboard rib the holes are tight against the doubler flanges. So I lifted the rivet gun up with a few washers and nuts. Then I made a little pipe from some steel brake line to lift the rivet gun. I put a washer under it to spread the force over the rivet head. This worked fine. I tried some other methods that didn't work (see next page).
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Pulled rivets between spar & ribs

Pulled rivets between spar & ribs

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Hold skin with block of wood

Hold skin with block of wood

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Use steel tube & washer  to raise gun a bit

Use steel tube & washer to raise gun a bit

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