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Zenith CruZer & Sonex Logs
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Date: 8-17-2008
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Number of Hours: 2.90
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Manual Reference: SNX-W08
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Brief Description: Main Spar Mating
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Mated the spars today. As part of the initial spar buildup, once complete, you mate the spars together to ensure the flush sides fit together w/o any interferance from bolts, HW, etc. Then, you clamp them together in the mated position, and drill 5 holes to 1/4". Three holes in the center of the spar are alignment holes, and serve to keep the spars together. There are 2 additional holes, one on each end, that are drilled thru the SNX-W11-02 wing attach block assemblies. These will ultimately be up-drilled to 3/8" to fasten them to the fuselage during the wing rigging phase.
During the drilling, one of the wing attachment blocks had its hole elongated to a bit more of a shape than I thought would be removed during the future up-drill to 3/8".
Re-fabricated that block, and re-drilled to 1/4". Hole is now straight, i..e., not elongated, but is not dead-center where it comes out the bottom of the block. Have asked Sonex whether it's that far off or not.
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Spars clamped together; first alignment hole bolted
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Spars mated
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Block w/Elongated Hole
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