What is the outer skin material and thickness on the cockpit area, and in particular is it different metal immediately around the windows and supporting the wipers?
I know that for protection against bird strikes on the 767, the ' skull' or " crown" portion above the windows was changed to titanium instead of thick aluminum. This was the result of a test ( chicken gun ) of an x pound bird at 400 mph at that area. On the early 767, the hydraulic system valves and certain switches were located in that area .
I do not recall for sure re the 777, but I believe that titanium was/is used for the area immediately above the windows for similar reasons. And its a good bet that the window surround channels are also titanium due to strength and weight considerations and corrosion .
