Bront, unless there have been a number of changes since I retired, the UH-60 restrictions you quoted are incorrect. In fact the flight which led to the original limits involved both Bob Zincone, who was the development chief for the UTTAS test program, and John Chapkovich, the head structural design engineer. One other note, if you ever get in the UH-60 cockpit and it has the sliding window: if you do open it in flight, don’t put your paper map anywhere close to it-the window has another name, “ Automatic Map Jettison “.