page_title: Boeing 767
section_title: Overview
hierarchical_section_title: Boeing 767 / Design / Overview
caption_attribution_description: Everett assembly line
context_page_description: The Boeing 767 is a wide-body airliner developed and manufactured by Boeing Commercial Airplanes.
  The airliner was launched as the 7X7 project on July 14, 1978, the prototype first flew on September 26, 1981, and it was certified on July 30, 1982.
  The original 767-200 entered service on September 8 with United Airlines, and the extended-range 767-200ER in 1984.
  It was stretched into the 767-300 in October 1986, followed by the 767-300ER in 1988, the most popular variant.
  The 767-300F, a production freighter version, debuted in October 1995.
  It was stretched again into the 767-400ER from September 2000.
  To complement the larger 747, it has a seven-abreast cross-section, accommodating smaller LD2 ULD cargo containers.
  The 767 is Boeing's first wide-body twinjet, powered by General Electric CF6, Rolls-Royce RB211, or Pratt & Whitney JT9D turbofans. JT9D engines were eventually replaced by PW4000 engines.
  The aircraft has a conventional tail and a supercritical wing for reduced aerodynamic drag.
  Its two-crew glass cockpit, a first for a Boeing airliner, was developed jointly for the 757 − a narrow-body aircraft, allowing a common pilot type rating.
context_section_description: The 767 is a low-wing cantilever monoplane with a conventional tail unit featuring a single fin and rudder. The wings are swept at 31.5 degrees and optimized for a cruising speed of Mach 0.8 (533 mph or 858 km/h). Each wing features a supercritical airfoil cross-section and is equipped with six-panel leading edge slats, single- and double-slotted flaps, inboard and outboard ailerons, and six spoilers. The airframe further incorporates Carbon-fiber-reinforced polymer composite material wing surfaces, Kevlar fairings and access panels, plus improved aluminum alloys, which together reduce overall weight by 1,900 pounds (860 kg) versus preceding aircraft.
  To distribute the aircraft's weight on the ground, the 767 has a retractable tricycle landing gear with four wheels on each main gear and two for the nose gear. The original wing and gear design accommodated the stretched 767-300 without major changes. The 767-400ER features a larger, more widely spaced main gear with 777 wheels, tires, and brakes. To prevent damage if the tail section contacts the runway surface during takeoff, 767-300 and 767-400ER models are fitted with a retractable tailskid. The 767 has left-side exit doors near the front and rear of the aircraft.
  In addition to shared avionics and computer technology, the 767 uses the same auxiliary power unit, electric power systems, and hydraulic parts as the 757. A raised cockpit floor and the same forward cockpit windows result in similar pilot viewing angles. Related design and functionality allows 767 pilots to obtain a common type rating to operate the 757 and share the same seniority roster with pilots of either aircraft.
caption: The 767 has the same cockpit windows as the Boeing 757
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