MD-11 Family
1
Introduction
a
MD-11 Passenger
i
Basic Dimensions
ii
Passengers Typical configuration
iii
Range
iv
Cross Section
b
MD-11 Combi
i
Basic Dimensions
c
MD-11 Convertible Freighter
i
Basic Dimensions
d
MD-11 Freighter
i
Basic Dimensions
ii
Passengers Typical configuration
iii
Range
1
Introduction

MD-11 alternative seating configurations. A, B: 298 passengers, including 226 economy class in 3-4-2 or 2-5-2 configurations; c: 323 passengers in two classes; d: 410 economy passengers.

MD-11, the world's only modern large, wide-cabin trijet, offers a highly sophisticated flight deck and advanced automatic system controls that substantially reduces pilot workload. In service with customers in all parts of the world, MD-11 was produced in Long Beach, California, at Douglas Products Division of Boeing Commercial Airplanes until February 2001. A worldwide network of subcontractors and suppliers supported the assembly line.

MD-11 was available in four models -- passenger, all freighter, convertible freighter and "combi," where passengers and freight are carried on main deck with additional freight carried below the deck. An extended-range (ER) feature was available on all versions.

Seating capacities on standard airplane vary from 285 in a three-class arrangement to 410 in an all-economy configuration. Below the main deck, MD-11 provides more space for containerized or palletized cargo after passenger bags are loaded than any other jetliner, yielding important additional revenue for its operators.

Advances in aerodynamics, propulsion, aircraft systems, cockpit avionics and interior design contribute to performance and operating economy of all MD-11 models. Aerodynamic improvements include winglets and a redesigned wing trailing edge, a smaller horizontal tail with integral fuel tanks and an extended tail cone. These features reduce drag, save fuel and add range.

 

The nonstop range of the standard MD-11 operating at a maximum takeoff weight of 602,500 pounds (273,290 kg) is approximately 7,630 statute miles (12,270 km) with 285 passengers and their bags. The extended-range version of MD-11, equipped with an auxiliary fuel tank and operating at a higher maximum takeoff weight of 630,500 pounds (285,990 kg), has a range of approximately 8,225 statute miles (13,230 km).

Three engines -- General Electric CF6-80C2, Pratt & Whitney 4460, and Pratt & Whitney 4462 -- are offered to power MD-11, providing maximum efficiency in their thrust class.

The advanced flight deck features six cathode ray tube displays, digital instrumentation, wind-shear detection and guidance devices, a dual flight management system that helps conserve fuel and a dual digital automatic flight control system (autopilot) with fail operational capability. Computerized system controllers perform automated normal, abnormal and emergency checklist duties for major systems, reducing flight crew requirements from three to two persons. Industry-standard interlinked wheel-and-column controls enhance crew communications and situation awareness at all times.

MD-11 was launched on Dec. 30, 1986. Assembly of the first unit began March 9, 1988. First flight was on Jan. 10, 1990. Certification occurred Nov. 8, 1990, with first delivery on Dec. 7. For comparison, MD-11 is 200 feet 10 inches (61.2 m) long, or 18.6 feet (5.66 m) longer than earlier DC-10 trijet, and carries about 50 more passengers.

Seating 285 passengers in a three-class configuration, MD-11 has a maximum range of 8,225 miles (13,230 km).

a
MD-11 Passenger
Standard
Optional

Passenger capacity

285 to 410

285 to 410

Design range, mi (km)

7,630 (12,270)

8,225 (13,230)

Maximum Takeoff gross weight, lb (kg)

602,500 (273,290)

630,500 (285,990)

Typical operating empty weight, lb (kg)

291,600 (132,270)

294,200 (133,450)

Engines

  • Pratt & Whitney
  • General Electric
  • PW4460 CF6-80C2
  • PW4462 optional CF6-80C2
  • PW4460 CF6-80C2
  • PW4462 optional CF6-80C2

Maximum fuel capacity, U.S. gal (L)

38,615 (146,155)

38,615 (146,155)

Lower-hold cargo volume, ft3 (m3)

6,850 (194)

6,850 (194)

i
Basic Dimensions

McDonnell Douglas MD-1 medium/long-range transport
ii
Passengers Typical configuration
iii
Range
iv
Cross Section
     


Cabin cross-section of MD-11 in economy layout. Aisle width 48.3 cm (1 ft 7 in); height 241.3 cm (7 ft 11 in); seat width 45.7 cm (1 ft 6 in); overall width, two seats 106.7 cm (3 ft 6 in), five seats 259.1 cm (8 ft 6 in). Exterior diameter 6.02 m (19 ft 9 in).

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b
Combi
MD-11 Combi allows airlines to balance their cargo and passenger revenues. It operates as a conventional, all-passenger MD-11 or can carry 181 passengers in three classes plus six cargo pallets on main deck in combi mode.
 

Standard

Optional

Passenger capacity

181 to 214

181 to 214

Design range, mi (km)

6,495 (10,445)

6,495 (10,445)

Maximum Takeoff gross weight, lb (kg)

602,500 (273,290)

630,500 (285,990)

Typical operating empty weight, lb (kg)

286,100 (129,775)

286,100 (129,775)
Engines
  • Pratt & Whitney
  • General Electric
  • PW4460 CF6-80C2
  • PW4462 optional
  • PW4460 CF6-80C2
  • PW4462 optional

Maximum fuel capacity, U.S. gal (L)

38,615 (146,155)

38,615 (146,155)

Passenger capacity

  • All-passenger, three class
  • Passengers and main-deck cargo
  • 285
  • 181
  • 285
  • 181

Main-deck cargo volume, pallets, ft3 (m3)

  • Passengers and main deck cargo
  • 6 pallets, 3,590 (102)
  • 6 pallets, 3,590 (102)

Lower-hold cargo volume, ft3 (m3)

935 (26.5)

727 (20.6)

Basic Dimensions
  • Main deck
  • Lower deck
  • Lower-hold cargo volume, ft3 (m3)
  • 6 pallets
  • 6 pallets
  • 6,850 (194)
  • 6 pallets
  • 6 pallets
  • 6,850 (194)
i
Basic Dimensions
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c
MD-11 Convertible Freighter
 

Passenger Mode

Freighter Mode

Passengers

350 to 410

N/A

Cargo*

6,850 cu ft (194 cu m)

Main Deck:14,508 cu ft (41 cu m)
Lower Deck: 6,850 cu ft (194 cu m)

Engines

Maximum thrust

  • Pratt & Whitney 4460 60,000 lb (27,216 kg)
  • Pratt & Whitney 4462 62,000 lb (28,123 kg)
  • General Electric CF6-80C2 61,500 lb (27,896 kg)
  • Pratt & Whitney 4460 60,000 lb (27,216 kg)
  • Pratt & Whitney 4462 62,000 lb (28,123 kg)
  • General Electric CF6-80C2 61,500 lb (27,896 kg)

Maximum Fuel Capacity

38,615 U.S. gal (146,174 L)

38,615 U.S. gal (146,174 L)

Maximum Takeoff Weight

630,500 lb (285,990 kg)

630,500 lb (285,990 kg)

Maximum Range

7,620 statute miles (12,655 km)

4,540 statute miles (7,310 km)

Typical Cruise Speed at 31,000 feet

0.87 Mach 588 mph (945 km/h)

0.87 Mach 588 mph (945 km/h)

Basic Dimensions
  • Wing Span
  • Overall Length
  • Tail Height
  • 169 ft 5 in (51.7 m)
  • 200 ft 8 in (61.2 m)
  • 57 ft 8 in (17.6 m)
  • 169 ft 5 in (51.7 m)
  • 200 ft 8 in (61.2 m)
  • 57 ft 8 in (17.6 m)
i
Basic Dimensions
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d
MD-11 Freighter
Passengers
  • Typical 3-class configuration
  • Typical 2-class configuration
  • Typical 1-class configuration
  • N/A
  • N/A
  • N/A

Cargo*

Main Deck: 15,530 cu ft (447 cu m)
Lower Deck: 6,850 cu ft (194 cu m)

Engines

Maximum thrust

  • Pratt & Whitney 4460 60,000 lb (27,216 kg)
  • Pratt & Whitney 4462 62,000 lb (28,123 kg)
  • General Electric CF6-80C2 61,500 lb (27,896 kg)

Maximum Fuel Capacity

38,615 U.S. gal (146,174 L)

Maximum Takeoff Weight

630,500 lb (285,990 kg)

Maximum Range

4,450 statute miles (7,310 km)

Typical Cruise Speed at 31,000 feet

0.87 Mach
588 mph (945 km/h)

Basic Dimensions
  • Wing Span
  • Overall Length
  • Tail Height
  • 169 ft 5 in (51.7 m)
  • 200 ft 8 in (61.2 m)
  • 57 ft 8 in (17.6 m)
Basic Configuration Long-range options (assumes after-market auxiliary fuel tanks)
i
Basic Dimensions
ii
Passengers Typical configuration
iii
Range
All Images are taken by CCKing
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