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Terrences Web Site
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Date: 8-20-2007
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Number of Hours: 3.00
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Manual Reference: 6T2A 4
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Brief Description: Drill and cleco stab skin to rear spar-3
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1. I drilled #40 holes in the ribs and front spar in the following pattern
a. I put a 2x4x8 on the top of the skin to hold it down uniformly.
b. I drilled #40 holes in the center ribs, starting at the rear spar, alternating between the two center ribs, clecoing as I went.
c. I drilled every 2nd hole (#40) in the front spar, alternating left and right, out to the hole just inboard of the middle rib, clecoing as I went.
d. I drilled #40 holes in the middle ribs, starting at the rear spar, alternating between the two middle ribs, clecoing as I went.
e. I drilled every 2nd hole (#40) in the front spar, alternating left and right, out to the hole just inboard of the outside rib, clecoing as I went.
f. I drilled #40 holes in the outside ribs, starting at the rear spar, alternating between the two outside ribs, clecoing as I went.
g. I drilled every 2nd hole (#40) in the front spar, alternating left and right, out to the outside end of the spar, clecoing as I went. Then I removed the 2x4x8 from the skin.
h. On the rear spar, I drilled #30 holes through the undrilled pilot holes and clecoed. Then I removed the #40 clecoes and drilled out the #40 holes to #30.
i. I removed clecoes from the rib holes, drilled out to #30, and reclecoed.
j. On the front spar, I drilled #30 holes through the undrilled pilot holes and clecoed. Then I removed the #40 clecoes and drilled out the #40 holes to #30. See images 1 & 2.
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Drilling the front spar
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Drilled to #30 & Clecoed
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