Cleared workbench. Laid out both side skins. Smoothed all edges with'V' file. Marked orientation. Cut 7 'L' angles for each side and marked centerlines. Flipped side skins so that inside was down. Lined up 'L' angles then drilled and clecoed inplace. Vertical alignment was made by marking and drilling bottom hole 10mm from end. Worked from aft to front.
Riveted HT frames inplace.
Screwed vertical braces to side of workbench for clamping points to hold the left side skin inplace veritically. Clamped 6B2-1 aft longeron in place. Trimmed aft most 'L' angle to final size.
