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  • Boeing 777

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    Description

    The Boeing 777 is a wide-body airliner developed and manufactured by Boeing Commercial Airplanes.

    General Information

    It is the world's largest twinjet and commonly referred to as the Triple Seven. The 777 was designed to bridge the gap between Boeing's 767 and 747, and to replace older DC-10s or L-1011s. Developed in consultation with eight major airlines, with a first meeting in January 1990, the program was launched on October 14, 1990 with an order from United Airlines. The prototype was rolled out on April 9, 1994, and first flew on June 12, 1994. The 777 entered service with the launch customer, United Airlines, on June 7, 1995. Longer range variants were launched on February 29, 2000 and were first delivered on April 29, 2004.

     

    It can accommodate up to ten abreast seating layout and has a typical 3-class capacity of 301 to 368 passengers, with a range of 5,240 to 8,555 nautical miles (9,700 to 15,840 km). It is recognizable for its large-diameter turbofan engines, six wheels on each main landing gear, fully circular fuselage cross-section, and a blade-shaped tail cone. It has fly-by-wire controls, a first for Boeing. It initially competed with Airbus A340 and McDonnell Douglas MD-11, both now out of production, and currently competes with the Airbus A330-300 and newer Airbus A350 XWB.

     

    The original 777 with a maximum takeoff weight (MTOW) of 545,000–660,000 lb (247–299 t) was produced in two fuselage lengths: the initial -200 was followed by the extended-range 777-200ER in 1997; and the 33.25 ft (10.13 m) longer 777-300 in 1998. Those 777 Classics were powered with 77,200–98,000 lbf (343–436 kN) General Electric GE90, Pratt & Whitney PW4000, or Rolls-Royce Trent 800 engines. The longer range 777-300ER with a MTOW of 766,000–775,000 lb (347–352 t) entered service in 2004, the ultra long-range 777-200LR in 2006, and the 777F freighter in 2009. These long haul variants feature 110,000–115,300 lbf (489–513 kN) GE90 engines and extended raked wingtips. In November 2013, Boeing announced the 777X development with the -8 and -9 variants, scheduled to enter service by 2020. The 777X features composite wings with folding wingtips and General Electric GE9X engines.

     

    The 777 has been ordered and delivered more than any other wide-body airliner; as of August 2019, more than 60 customers had placed orders for 2,049 aircraft of all variants, with 1,609 delivered. The most common and successful variant is the 777-300ER with 844 aircraft ordered and 810 delivered. By March 2018, the 777 had become the most-produced Boeing wide-body jet, surpassing the Boeing 747. As of July 2018, Emirates was the largest operator with 163 aircraft.

     

    For details of the development, design, production and ten variants (including 777VIP and KC777 tanker),click here.

     

    The specifications below are for the 777-300ER.

     

    Boeing 777 A6-EGJ Photo Andy Graf.jpg

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    Boeing 777 ZK-OKB YMML Take-off roll 20101006.jpg

    Specifications

    Seats:
    Two (cockpit), 3-class seats:365 (22F/70J/273Y)
    Length:
    242 ft 4 in / 73.86 m
    Wingspan:
    212 ft 7 in / 64.80 m, 31.6° Wing sweep
    Height:
    60 ft 8 in / 18.5 m
    Wing Area:
    4,702 sq ft (436.8 sq m)
    Empty Weight:
    370,000 lb / 167,829 kg 300ERSF: 336,000 lb (152 t)
    MTOW:
    775,000 lb / 351,533 kg
    Fuel Capacity:
    47,890 US gal / 181,283 L / 320,863 lb / 145,538 kg
    Powerplant:
    2× GE90-115B, Max thrust 2× 115,300 lbf (513 kN)
    Vne:
    Max. Mach 0.87–Mach 0.89 (499–511 kn; 924–945 km/h)
    Cruise Speed:
    Mach 0.84 (482 kn; 892 km/h)
    Range:
    7,370 nmi / 13,649 km. 300ERSF: 4,650 nmi (8,610 km)
    Takeoff Dist.:
    10,000 ft (3,050 m)
    Service Ceiling:
    43,100 ft (13,100 m)

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