McDonnell Douglas MD-12
The McDonnell Douglas MD-12 was a design study undertaken by the McDonnell Douglas company in the 1990s. Initially it was to be a stretched, higher capacity version of the trijet MD-11. The design then grew into a much larger aircraft with 4 engines and two passenger decks extending the length of the fuselage. This was similar in concept to the Airbus A3XX and Boeing NLA, and would have been larger than the Boeing 747. Despite aggressive marketing, especially in the the aviation press, no orders were placed for the aircraft, and it was quietly forgotten after the merger between McDonnell Douglas and Boeing.
Specifications (MD-12 HC, as designed)
General Characteristics
- Crew: two pilots
- Capacity: up to 511 passengers in 3 classes
- Length: 204 ft 8 in (62.40 m)
- Wingspan: 209 ft 11 in (64.00 m)
- Height: 72 ft 10 in (22.20 m)
- Wing area: 5,659 ft² (526 m²)
- Empty: 424,607 lb (193,003 kg)
- Loaded: lb ( kg)
- Maximum takeoff: 939,400 lb (427,000 kg)
- Powerplant: 4x General Electric CF6-80C2 turbofans, 60,000 lb (268 kN) thrust each
Performance
- Maximum speed: 656 mph (1,050 km/h)
- Range: 8,333 miles (13,334 km)
- Service ceiling: ft ( m)
- Rate of climb: ft/min ( m/min)
- Wing loading: lb/ft² ( kg/m²)
- Thrust-to-Weight:
Related content
Related development:
Comparable aircraft: Airbus A3XX - Boeing NLA
Designation sequence: DC-9 - DC-10 - MD-11 - MD-12
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