Cut C-3 thru C-6 seat supports. Drilled 1" bearing support holes in each as well as 3" rectangular holes. Cut slots in each including control rod relief slots in C-5 and C-6. Bent flanges on C-6 Attempted to use new homemade brake to make the flange bends, but it needs to be re-worked before next use. Next AZ work when I return will be to make F-2, F-3, F-4, F-5 and F-6 and lay out gas tank.