ULA Attachment Bracket Version 0

Hi all this is my solution to the challenge. I've attached the file in IGES, STEP and STL. Mass = 0.07838lb (35.55471g) Max Stress (only at 2 weakest point on rib) = 5624.225psi Min Factor of safety (only at 2 weakest point on rib) = 1.547 Max Factor of safety = 3 Force applied = 600lbf, 1000lbf and 2000lbf (Please see the picture attached). The attachment bracket can still survive when 1000lbf force is applied in negative z direction. Thank you very much for your viewing and download, and for the thumb ups, if any.