SSE Wing Construction

I have been making some (slow) progress on my Sig Somethin Extra build. So far, I have the left wing ribs, spars, and shear webs glued. Need to add the LE and TE sheeting before unpinning it from the board.

2013-07-20T19-49-35_1 2013-07-21T13-40-57_0

To keep the ribs square during assembly, I have been making use of 1-2-3 blocks. Normally used by machinists, they are square and flat and heavy enough (relative to the light balsa and ply parts) to stay where you put them. At $17 a pair, they are quite affordable and have a multitude of uses for fixturing during assembly.

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