Quote Originally Posted by JNicol View Post
what thickness material should I use.... I am looking at 3mm, or would I need to go thicker?
That's where engineering comes in. Need to know what material (to know the properties). Need to know the speed of the airplane (or whatever factor is used in windshield design - to know the load). Need to know the supporting geometry, attachment method (adhesive, rivets, screws, hole spacing, hole size, edge distance, etc.). Need to know windshield geometry - wrap it into a curve will be a LOT stiffer than a flat plate... So this is where the answer gets complicated.