The end result of making a good windshield, is that the glass stays in once piece. 1  A layer of polyvinyl butryal (PVB) is sandwiched between two sheets of glass. 2  Pressure and heat are applied, which chemically and mechanically bonds the outer sheets of glass to the inner plastic layer.
You're probably OK with 90 minutes. I sometimes arrive at my home airport 60 minutes before a flight because I use the expedited security line and because I know where everything is and how long things usually take. But when I'm flying home from an airport that I'm not as familiar with I leave myself more time.
How early do I need to get to JFK for International Flight - New York City Forum. How early do I need to get to JFK for International Flight. I am leaving for Paris out of JFK on a Friday evening and have found competing info as to whether I need to check in 2 or 3 hours prior to the flight.