Brief Description: Reinforced the D-1000 EFIS Skyview Cut-out
The Big D-1000 Skyview panel required cutting away the upper frame that supports the instrument panel. I had a friend in the local EAA chapter weld a reinforcement "L" shaped doubler from .025 thick 4130 steel. This was nested in the cut-away part of the frame. I designed the doubler so that it would restore the original axial (EA) and bending (EI) stiffness and strength of the frame.