B757-200.......
.......and how can you expect a captain or f/o to handle an Airbus A340-600 in an emergency by himself???
Pardon...WTF are you on about? What would happen if the Captain became incapacitated by illness etc during the flight???? Think you will find an F/O could land an A340-600 or any other aeroplane by him/herself if he/she had to.......
