Wide-body aircraft

A wide-body aircraft, also known as a twin-aisle aircraft, is an airliner with a fuselage wide enough to accommodate two passenger aisles with seven or more seats abreast.[1] The typical fuselage diameter is 5 to 6 m (16 to 20 ft).[2] In the typical wide-body economy cabin, passengers are seated seven to ten abreast,[3] allowing a total capacity of 200 to 850[4] passengers. The largest wide-body aircraft are over 6 m (20 ft) wide, and can accommodate up to eleven passengers abreast in high-density configurations.

A narrow-body Boeing 737 of Lufthansa in front of a wide-body Boeing 777 of Emirates

By comparison, a typical narrow-body airliner has a diameter of 3 to 4 m (10 to 13 ft), with a single aisle,[1][5] and seats between two and six people abreast.[6]

Wide-body aircraft were originally designed for a combination of efficiency and passenger comfort and to increase the amount of cargo space. However, airlines quickly gave in to economic factors, and reduced the extra passenger space in order to maximize revenue and profits.[7]

Wide-body aircraft are also used for the transport of commercial freight and cargo[8] and other special uses, described further below.

The term jumbo jet usually refers to the largest wide-body airliners due to their very large size; examples include the Boeing 747 (the first wide-body and original "jumbo jet"), Airbus A380 ("superjumbo jet"), and Boeing 777X ("mini jumbo jet").[9][10] The phrase "jumbo jet" derives from Jumbo, a circus elephant in the 19th century.[11][12]

Seven-abreast aircraft typically seat 160 to 260 passengers, eight-abreast 250 to 380, nine- and ten-abreast 350 to 480.[13]

By the end of 2017, nearly 8,800 wide-body airplanes had been delivered since 1969, peaking at 412 in 2015.[14]

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