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RV-7A Construction Log
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Date:  9-15-2008
Number of Hours:  2.00
Manual Reference:  
Brief Description:  Ribs - Assembled Left wing frame

I riveted the center ribs onto the main spar and rear spar of the left wing. I decided to do them one at a time rather than cleco the whole thing together, so that I'd have plenty of space, especially among the first 4 inboard ribs. Rivet gun set to 45 pounds worked fine on 1/8th inch rivets. I decreased pressure a little on the far outboard ribs where rivets are a little shorter. I clamped the spar down to my work bench so I could put a lot of pressure on the gun and bucking bar without having to balance forces. Worked great.
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Clamped Spar started with 4th rib

Clamped Spar started with 4th rib

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Plenty of clamps so I could push

Plenty of clamps so I could push

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Each rib went on fine.

Each rib went on fine.

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