 The -400 was offered in passenger (-400), freighter (-400F), combi (-400M), domestic (-400D), extended range passenger (-400ER), and extended range freighter (-400ERF) versions. Passenger versions retain the same upper deck as the -300, while the freighter version does not have an extended upper deck. The 747-400D was built for short-range operations with maximum seating for 624. Winglets were not included, but they can be retrofitted. Cruising speed is up to Mach 0.855 on different versions of the 747-400.
