Not to point out the obvious to all you in the "too dense and opinionated to do research", but this thread has turned quite patheti-sad. I did a quick check in the POH on my plane, and the windows are Lexan. Checked into a few airliners....Lexan and polycarbonate, with reinforced housings seems to be the norm. They sooooo do not use "glass" as the term is traditionally used.