Wing skin jigs for ribs 5, 6, 7, and 8

As with the ribs 2, 3, and 4, it was found that tolerance of the rib mounting brackets were responsible for mis-positioning right hand rib 8 and left hand 5, 6, and 7. Such forward-back mispositioning would make a skin fit problematic. Here jigs are made which are match-copied from the skins