Boeing 777
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 Production, in service
|
Primary Users
|
Emirates, United Airlines, Singapore Airlines, Air
France
|
Produced
|
1993-present
|
Number Built
|
1,009 as of April 2012
|
Unit Cost
|
777-200ER: US$244.7 million
777-200LR: US$275.8 million
777-300ER: US$298.3 million
777 Freighter: US$280.1 million
|
The Boeing 777 is a long-range, wide-body,
twin-engine jet airliner manufactured by Boeing Commercial Airplanes. It is the world's
largest twinjet and
is commonly referred to as the "Triple Seven".The
aircraft has seating for over 300 passengers and has a range from 5,235 to 9,380 nautical miles (9,695 to 17,370 km), depending on
model. 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 blade-shaped tail cone. 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, began
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, as well
as extended and raked wingtips. Other
models are equipped with either the GE90, Pratt & Whitney PW4000, or Rolls-Royce
Trent 800 engines. The
777-200LR is the world's longest-range airliner and holds the record for
longest distance flown by a non-stop commercial aircraft, with the demonstrated capability to
fly more than halfway around the world.
United Airlines first placed the 777 into commercial
airline service in 1995. As of April 2012, 60 customers had placed orders for
1,367 aircraft of all variants, with 1,009 delivered. The most common variant used worldwide
is the 777-200ER, with 415 aircraft delivered, and Emirates operates the largest 777 fleet, with
87 aircraft as of July 2011.The airliner has recorded two hull-loss accidents, with no occupant
fatalities, as of April 2012.
Through the 2000s, the 777 has emerged as one of its
manufacturer's best-selling models. Because of rising fuel costs, airlines have
acquired the type as a comparatively fuel-efficient alternative to other wide-body jets
and have increasingly used the aircraft on long-haul, transoceanic routes.
Direct market competitors have included the Airbus A330-300, A340, and the upcoming A350. The subsequently
developed 787 Dreamliner also shares design features with the
777.
