Fabricate F08-03 Seat Sling. Cut holes in F08-03 Seat Sling for control sticks. Cut #40 F08-04 x 3 Seat Hinge, F08-05 x 2 Structure Hinge, drill same #40. Cleco F08-04 x 3 to F08-03, drill #30, cleco and rivet top and bottom hinges. Center hinge is only clecoed at this time, to make F08-03 Seat Assembly.