Following an unsuccessful proposal for the U.S. Air Force’s CX-HLS (Heavy Logistics System) in 1965, Douglas Aircraft began design studies based on its CX-HLS design. In 1966, American Airlines offered a specification to manufacturers for a widebody aircraft smaller than the Boeing 747 but capable of flying similar long-range routes from airports with shorter runways. The DC-10 became McDonnell Douglas’s first commercial airliner after the merger between McDonnell Aircraft Corporation and Douglas Aircraft Company in 1967.
The trijet has two turbofans on underwing pylons and a third one at the base of the vertical stabilizer. The twin-aisle layout has a typical seating for 270 in two classes. The initial DC-10-10 had a 3,500 nmi (6,500 km) range for transcontinental flights. The DC-10-15 had more powerful engines for hot and high airports. The DC-10-30 and -40 models (with a third main landing gear leg to support higher weights) each had intercontinental ranges of up to 5,200 nmi (9,600 km). The KC-10 Extender (based on the DC-10-30) is a U.S. Air Force tanker.
|National origin||United States|
|First flight||August 29, 1970|
|Introduction||August 5, 1971 with American Airlines|
|Status||In cargo service|
|Developed into||McDonnell Douglas MD-11|
|Std. seating||270 (222Y 8-abreast @ 34″ + 48J 6-abreast @ 38″)|
|Max. seating||399Y (10-abreast @ 29–34″ pitch) layout, FAA exit limit: 380|
|Cargo||26 LD3 layout, main deck: 22 88×125″ or 30 88×108″ pallets|
|Length||182 ft 3.1 in / 55.55 m||181 ft 7.2 in / 55.35 m||182 ft 2.6 in / 55.54 m|
|Height||57 ft 6 in / 17.53 m||57 ft 7 in / 17.55 m|
|Wingspan||155 ft 4 in / 47.35 m||165 ft 4 in / 50.39 m|
|Wing area||3,550 sq ft (330 m2)||3,647 sq ft (338.8 m2)|
|Width||19 ft 9 in (6.02 m) fuselage, 224 in (569 cm) interior|
An air force, also known in some countries as an aerospace force or air army, is in the broadest sense, the national military branch that primarily conducts aerial warfare.