A narrow-body aircraft is an airliner with a fuselage aircraft cabin diameter typically of 3 to 4 metres (10 to 13 ft), and airline seat arranged 2 to 6 abreast along a single aisle. Narrow-body aircraft seating less than 100 passengers are commonly known as regional airliners.
In contrast, a wide-body aircraft is a larger airliner and is usually configured with multiple travel classes with a fuselage diameter of 5 to 6 metres (16 to 20 ft) and twin aisles. Passengers are usually seated 7 to 10 abreast. For comparison, typical wide-body aircraft can accommodate between 200 and 600 passengers, while the largest narrow-body aircraft currently in widespread service (the Boeing 757-300) carries a maximum of about 250.
Common short-haul / medium-haul narrow-body aircraft types
- Airbus A320 family - the second best selling jet airliner family of all time 156 inches (400 cm) outside diameter
- Boeing 717 - the latest iteration of the DC-9, 132 inches (340 cm) outside diameter
- Boeing 727 - at one time the most-produced airliner, 148 inches (380 cm) outside diameter
- Boeing 737 - the world's best selling jet aircraft, surpassing the 727, 148 inches (380 cm) outside diameter
- Boeing 757 - the largest of current major narrow bodies,148 inches (380 cm) outside diameter
- McDonnell Douglas DC-9 - 132 inches (340 cm) outside diameter
- McDonnell Douglas MD-80/MD-90 - a development of the DC-9, 132 inches (340 cm) outside diameter
- BAe 146 - flown as a large regional jet in a 69 seat passenger configuration
- Embraer E-Jets - jet aircraft 108 inches (270 cm) outside diameter
- Fokker F28 - jet aircraft 130 inches (330 cm)
- Fokker 70 - jet aircraft
- Fokker 100 - regional jet aircraft 130 inches (330 cm) outside diameter
- Tupolev Tu-134 - jet aircraft 114 inches (290 cm) outside diameter
- Tupolev Tu-154 - jet aircraft
- Tupolev Tu-204 - jet aircraft
- Tupolev Tu-334 - jet aircraft
Operating or proposed short haul regional and jet airliners
Common medium-haul / long-haul narrow-body aircraft types
- Boeing 707 - the first commercially successful jet airliner, 148 inches (380 cm) outside diameter
- Boeing 757 - the largest of current major narrow bodies,148 inches (380 cm) outside diameter
- Douglas DC-8 - the 60 series are the largest narrow-body subsonic airliner ever built, 163 inches (410 cm) outside diameter
- Il-62 - the long distance narrow-body jet
- Vickers VC10
- Tupolev Tu-204
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