| Manufacturer |
McDonnell Douglas |
Boeing |
| Description |
The McDonnell Douglas MD-12 was a large wide-body airliner concept planned by McDonnell Douglas in the 1990s. |
The Boeing 747-400 is a large, long-range wide-body airliner produced by Boeing Commercial Airplanes, as an advanced version of the original Boeing 747. |
| First Flight |
|
1988-04-29 |
| Entry Into service |
|
1989-02-09 |
| Production End |
|
2005-01-01 |
| Designer |
McDonnell Douglas |
|
| Type |
Double-decker wide-body aircraft |
Wide-body airliner |
| Length (m) |
63.4 |
70.66 |
| Height (m) |
22.55 |
19.41 |
| Cockpit Crew |
2 |
2 |
| Max Seating |
430 |
416 |
| Max Speed (km/h) |
1050 |
|
| Capacity Description |
Long range: 430 passengers (3-class) / High-capacity: 511 passengers (1-class) |
416 passengers (three-class configuration) , 6,085 cu ft (172.3 m3) cargo (up to 9 pallets or 30 LD1/LD3 containers) |
| Max Mach (Mach) |
0.85 |
0.92 |
| National Origin |
United States of America |
United States of America |
| Number Built |
|
694 |
| Powerplant Description |
4 × General Electric CF6-80C2 high-bypass turbofans, 274 kN thrust each |
4 × Pratt & Whitney PW4062 high-bypass turbofan |
| Primary Users |
|
Atlas Air, Lufthansa, UPS Airlines, British Airways (historical) |
| Status |
Design study, cancelled |
In limited passenger service, in cargo service |
| Wikipedia Article (URL) |
en.wikipedia.org/wiki/McDonnell_Douglas_MD-12 |
en.wikipedia.org/wiki/Boeing_747-400 |
| Flat Wing Span (m) |
64.92 |
64.44 |
| Flat Wing Area (m²) |
543.1 |
525 |
| Aircraft Engine |
General Electric CF6 |
Pratt & Whitney PW4000 |
| Number of Engines |
4 |
4 |