Aligned bottom side of nose skin with aft part of wing spar. Measured about 15 times and marked 'real' locations of nose ribs. Drilled and clecoed the rear edge of nose skin to bottom of spar; starting in the middle and working outward in both directions. Enlarged all holes in rear bottom skin to A5 size. Marked hole locations for nose ribs on nose skin. Removed skin from frame. Drilled holes in nose skin then replaced on frame. Drilled holes into nose ribs 1, 2 and 3. Quit for day.
