B757 Exits
Hi.
I was just wondering if anyone can help me with a question I've had for a while. ...on the 757 (757-200 at least), I've noticed that there are an option of exit displacement. Most carriers have the four exits in the front, 4 overwing, and 2 rear exits. Then, I've seen carriers like USAirways with 4 forward exits and 4 rear exits. Is this some option set by the air carrier when they signed the purchase agreement? What is the choice based on? Also, is this standard among airliners?
Thanks a lot.
Joe