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| Rear Channel Installation Tool clamped onto a main rib for positioning |
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| Aligning the channel flush with the top and bottom rib surfaces |
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| Channel end positioned on jig & rib |
The various rear spar channel sections are installed between the ribs using the jig/alignment tool. A 708mm length between the spar faces is maintained. The aft end of the tool helps fix the 75 deg canter of the rear spar to match the profile of the wing chord. Straight-edges are clamped along the upper and lower surfaces to maintain proper alignment during the drilling/clecoing process.
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