Boeing 747-400

The 747-400 is the best-selling 747 and the one most people picture: the stretched upper deck of the -300 on a new wing six feet longer each side and tipped with winglets, and a two-crew glass cockpit that retired the flight engineer. It takes off at 396,893 kg, carries 400 passengers in three classes and is certified for 660, and its 216,014 litres of fuel made non-stop Europe-to-Australia sectors routine. The cruise speed, cruise Mach, range, ceiling, climb rate and take-off distance are EUROCONTROL's figures for the B744 type code rather than a certificate's: a type certificate states limits and weights, not cruise performance, and the source does not distinguish sub-variants. Cabin width and height are Boeing's own, from Boeing D6-58326-1 REV F (747-400) and D6-58326 (747), section 2.5.3, page 2-30, and D6-58326 section 2.5.2, page 38: main deck 7 ft 11 in (2.41 m) floor to ceiling; trim-to-trim 20 ft (6.10 m).