The 767-400ER brings significant improvements in operating economics over competing airplanes in the 240- to 300-seat market. The payload capability, intercontinental range, passenger comfort and commonality with other Boeing jetliners give this airplane strong market appeal. Sized between the Boeing 767-300ER and the Boeing 777-200, the 767-400ER features a lengthened fuselage; aerodynamic improvements, increased takeoff weight capability; and an all-new main landing gear. It is designed to be the most efficient airplane in its size category. Efficient design gives the higher-capacity 767-400ER excellent range capability (approximately 5,645 nautical miles or 10,454 km) to fly about 99 percent of the routes currently being served by airplanes in this size category. The 767-400ER features new, highly back-swept (raked) wing-tip extensions that increase the 767's 156-foot wingspan to 170 feet, 4 inches (51.9 m) designed to increase the aerodynamic efficiency of the wing. This efficiency of design and economy of structure affords the 767-400ER more gate and taxiway flexibility. It can use the same gates as the DC-10-30, MD-11 and L-1011, unlike the A330-200, which must use gates sized by the industry for large airplanes such as the 747 and 777. The 767-400ER interiors have adopted the architectural lines of the award-winning 777 interior. Newly sculpted sidewalls, ceilings and stow bins enhance the wide, open feeling passengers prefer.