Brief Description: finished initial work on center section, setting u
Up drilled the aft spar attachments from the prior 3/16ths to 7/32nds, then reamed the assembled fittings for precisely 0.2500 inch, then fitted a close-tolerance AN174 bolt. Then disassembled the center section from the wings and set it aside to return to working on the wings. Cut out aluminum for the wing tip spars and ribs, bent the spars into form.
the reamer used to enlarge the aft spar attachment bolts to 0.2500
using angle iron and bar stock as an improvised brake to bend the spars.
aluminum for spars, ribs and skins of both wing tips
