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Date:  8-28-2018
Number of Hours:  2.00
Manual Reference:  19-12
Brief Description:  Wing attach to CS Spar

Most of a week off due a very distracting ear infection. On the mend now, so I can use my brain again.

Was keen on making the CS Spar level, then jigging the wings to it, but this did not permit the incidence to be set correctly, so after farting around for ages I did it the plans way. Jigged the left Wing at zero dihedral and incidence, aligned the Spar tips with the wing skin and level, then levelled the right Wing to the spar. Just didn't work. at BL31 the upper surface of the Wing sits 3/8" lower than the upper surface of the Spar. Exactly 3/8", on both sides. WTF??? [Timewarp 29/08/18: I had got it wrong! See this date for the good news on how stupid I am]

Plans say Dihedral should be zero at WL 17.4, (top surface), but also says it is referenced to the CS Spar, and is less critical for performance than esthetics. I estimate that if I dial in 5 degrees anhedral on the both sides the wings will be 'square' as suggested by the plans. This is when it hits me the M-drawing template would have put the wings in this position! WTF???

Rejigged everthing, and it now looks square, level and nice, with about 5 degrees on anhedral...

Jigged Spar to Wings with hot glue blocks. Not game to drill anything because I still don't really understand what is going on.
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Wing jigged by plans. Looks wrong

Wing jigged by plans. Looks wrong

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All jigged square and hot glued in position

All jigged square and hot glued in position

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