Note: Remade Tank Channel Angles. Placement for Tank Channel (530 mm top fange) was measured straight across from top of Channel to leading edge of Spar Cap (incorrect). Measuring straight across has an error of 5mm to far to the rear. Must be measured from leading edge of Spar Cap along curve of rear rib to 530 mm. Bottom measuremewnt is 525 mm straight across, this measurement was ok. Remade Tank Channel angles by bending new "L" Angles with the flange to Ribs wider, so the top of the Tank Channel could be moved forward 5mm. The wider "L's" allowed reuse of the holes already drilled in the ribs . This is so the Fuel Tank Cover would fit over the Spar Cap & Tank Channel Flange. Bottom of L's was unchanged. Must fabricate new Tank Channel Angles so Channel can be moved forward 5mm.