Boeing 777
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| Boeing 777 | |
|---|---|
 | |
| Boeing 777-200 of United Airlines, the 777's launch customer | |
| Role | Wide-body jet airliner |
| National origin | United States |
| Manufacturer | Boeing Commercial Airplanes |
| First flight | June 12, 1994 |
| Introduction | June 7, 1995 with United Airlines |
| Status | In service |
| Primary users | Emirates United Airlines Air France Singapore Airlines |
| Produced | 1993–present |
| Number built | 1,066 as of December 2012[1] |
| Unit cost | 777-200ER: US$258.8 million[2] 777-200LR: US$291.2 million[2] 777-300ER: US$315 million[2] 777F: US$295.7 million[2] |
The Boeing 777 is a long-range wide-body twin-engine jet airliner manufactured by Boeing Commercial Airplanes. It is the world's largesttwinjet and has a capacity of over 300 passengers, with a range of 5,235 to 9,380 nautical miles (9,695 to 17,370 km), depending on model. Commonly referred to as the "Triple Seven",[3][4] its distinguishing features include the largest-diameter turbofan engines of any aircraft, six wheels on each main landing gear, a circular fuselage cross-section and a blade-shaped tail cone.[5] Developed in consultation with eight major airlines, the 777 was designed to replace older wide-body airliners and bridge the capacity difference between the 767 and 747. As Boeing's first fly-by-wire airliner, it has computer-mediated controls; it is also the first entirely computer-designed commercial aircraft.
The 777 is produced in two fuselage lengths. The original 777-200 model first entered service in 1995, followed by the extended-range 777-200ER in 1997. The stretched 777-300, which is 33.3 ft (10.1 m) longer, entered service in 1998. The longer-range 777-300ER and 777-200LR variants entered service in 2004 and 2006 respectively, while a freighter version, the 777F, debuted in 2009. Both longer-range versions and the freighter feature General Electric GE90 engines and extended raked wingtips. Other models are equipped with GE90,Pratt & Whitney PW4000 or Rolls-Royce Trent 800 engines. The 777-200LR is the world's longest-range airliner and can fly more than halfway around the globe; it holds the record for the longest distance flown non-stop by a commercial aircraft.[6][7]
United Airlines first placed the 777 into commercial airline service in 1995. As of June 2012, 60 customers had placed orders for 1,372 aircraft of all variants, with 1,025 delivered.[1] As of July 2011, the most common variant used worldwide is the 777-200ER, with 428 in service. As of February 2013, Emirates operates the largest 777 fleet, with over 120 passenger and freighter aircraft.[8] The airliner has been involved in two hull-loss accidents, with no on-board fatalities, as of January 2013.
The 777 ranks as one of Boeing's best-selling models. Because of rising fuel costs, airlines have acquired the type as a comparativelyfuel-efficient alternative to other wide-body jets and have increasingly deployed the aircraft on long-haul transoceanic routes. Direct market competitors have included the Airbus A330-300, A340, McDonnell Douglas MD-11 and the forthcoming A350. The 787 Dreamliner, which entered service in 2011, shares design features with the 777.
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