W13 Rear Spar Details - Located kit supplied parts. W13-01R and -01L Right and Left Hand Attach Plates - Cleaned laser cut holes residue. Drilled #40 pilot holes using the drill press. Step up drilled the 3/16th in. hole with #40 #30 #21 and #11 drill bits. Polished edges with scotch brite. W13-05R and -05L Right and Left Hand Tip Rib Attach Angles - Started cutting out shape from Z01-03 Angle Stock.

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