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Wikipedia

The Boeing 747-400 is a large, long-range wide-body airliner produced by Boeing Commercial Airplanes, an advanced variant of the initial Boeing 747. The "Advanced Series 300" was announced at the September 1984 Farnborough Airshow, targeting a 10% cost reduction with more efficient engines and 1,000 nautical miles (1,900 km) of additional range. Northwest Airlines (NWA) became the first customer with an order for 10 aircraft on October 22, 1985. The first 747-400 was rolled out on January 26, 1988, and made its maiden flight on April 29, 1988. Type certification was received on January 9, 1989, and it entered service with NWA on February 9, 1989.

It retains the 747 airframe, including the 747-300 stretched upper deck, with 6 ft (1.8 m) winglets. The 747-400 offers a choice of improved turbofans: the Pratt & Whitney PW4000, General Electric CF6-80C2 or Rolls-Royce RB211-524G/H. Its two-crew glass cockpit dispenses with the need for a flight engineer. It typically accommodates 416 passengers in a three-class layout over a 7,285 nmi (13,492 km) range with its 875,000-pound (397 t) maximum takeoff weight (MTOW).

The first -400M combi was rolled out in June 1989. The -400D Domestic for the Japanese market, without winglets, entered service on October 22, 1991. The -400F cargo variant, without the stretched upper deck, was first delivered in May 1993. With an increased MTOW of 910,000 lb (410 t), the extended range version entered service in October 2002 as the -400ERF freighter and the -400ER passenger version the following month. Several 747-400 aircraft have undergone freighter conversion or other modifications to serve as transports of heads of state, YAL-1 laser testbed, engine testbed or the Cosmic Girl air launcher. The Dreamlifter is an outsize cargo conversion designed to move Dreamliner components.

With 694 delivered over the course of 20 years from 1989 to 2009, it was the best-selling 747 variant. Its closest competitors were the smaller McDonnell Douglas MD-11 trijet and Airbus A340 quadjet. It has been superseded by the stretched and improved Boeing 747-8, introduced in October 2011. In the late 2010s, older 747-400 passenger aircraft were being phased out by airlines in favor of long-range, wide-body twinjet aircraft, such as the Boeing 777 and Airbus A350.

Air Canada

Air Canada is the flag carrier and the largest airline of Canada by size and passengers carried. Air Canada maintains its headquarters in the borough of Saint-Laurent, Montreal, Quebec. The airline, founded in 1937, provides scheduled and charter air transport for passengers and cargo to 222 destinations worldwide. It is a founding member of the Star Alliance. Air Canada's major hubs are at Toronto Pearson International Airport (YYZ), Vancouver International Airport (YVR), and Montréal–Trudeau International Airport (YUL). The airline's regional service is Air Canada Express.

Canada's national airline originated from the Canadian federal government's 1936 creation of Trans-Canada Air Lines (TCA), which began operating its first transcontinental flight routes in 1938. In 1965, TCA was renamed Air Canada following government approval. After the deregulation of the Canadian airline market in the 1980s, the airline was privatized in 1988. On 4 January 2000, Air Canada took over its largest rival, Canadian Airlines. In 2003, the airline filed for bankruptcy protection and in the following year emerged and reorganized under the holding company ACE Aviation Holdings Inc. In 2017, Air Canada flew 48 million passengers, as the airline celebrated its 80th anniversary. In October 2021, the Government of Canada acquired 6.4% of Air Canada, and has not ruled out further investment.

Air Canada has a fleet of Airbus A330, Boeing 777, and Boeing 787 Dreamliner wide-body aircraft on long-haul routes and uses the Airbus A320 family aircraft (including the A319, A320, and A321 variants), Boeing 737 MAX 8, and Airbus A220-300 aircraft on short-haul routes. The carrier's operating divisions include Air Canada Cargo, Air Canada Express, Air Canada Jetz (private jet charters), and Air Canada Rouge (leisure airline). Its subsidiary, Air Canada Vacations, provides vacation packages to over 90 destinations. Together with its regional partners, the airline operates on average more than 1,613 scheduled flights daily.

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