- Started setting the wings according to Van's installation instructions - Lots of taking the wings on and off for trimming the rear attach points The goal was to be able to drill the rear attach hole but we were not able to achieve that goal this time. We are in a very good position to achieve this on the next go around. We were able to get the incidence angle and sweep set but some of the spar bolt holes were not lining up. Trimming the rear attach points should take care of this issue.