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Il 767 non è assolutamente antieconomico, anzi, è nato proprio durante la guerra del golfo quando le compagnie aeree richiedevano macchine di lungo raggio che consumassero poco carburante. In effetti come prestazioni non è il massimo, ma è sempre più rapido a salire del marcione.
The narrowest widebody in service, the 767 started life as an advanced technology mid to large size airliner in the late 1970s.
Launched in
July 1978, the 767 was developed in tandem with the narrowbody 757 with which it shares a common two crew EFIS flightdeck (with six colour CRT displays) and many systems. The 767 also features a unique width fuselage typically seating seven abreast in economy, and a new wing design with greater sweepback (compared to the 757) which was designed with high altitude cruise in mind.
The 767 program also features a high degree of international participation, with Japanese companies in particular having a large share of construction.
Initially Boeing intended to offer two versions, the longer 767-200 and short fuselage 767100 (which was not launched as it was too close in capacity to the 757).
The 767 first flew on September 26 1981, and entered service (with United) on September 26 1982 (certification with P&W engines was awarded on July 30 1982).
The longer range 767-200ER (Extended Range) version features higher weights and an additional wing centre section fuel tank.
It first flew on March 6 1984, and service entry, with Ethiopian Airlines, was two months later. The 200ER accounts for 111 of the total 239 767-200s ordered.
The last airliner 767-200/-200ER was delivered in 1994 but a November 1998 order from Continental will see it return to production.
Boeing announced that it was developing a stretched development of the 767-200 in February 1982.
The resulting 767-300 features a 6.42m (21ft 1in) stretch consisting of fuselage plugs forward (3.07m/10ft 1in) and behind (3.35m/11ft) the wing centre section. The flightdeck and systems were carried directly over from the 767-200, the only other changes were minor, and related to the increased weights of the new version. Initially the max takeoff weight was the same as the later 767-200ER.
The 767-300 flew for the first time on January 30 1986, and was awarded certification and entered service in September that year. The higher weight Extended Range ER version flew on December 19 1986, while RollsRoyce RB-211-524G engines became available from 1989. The range of the 767-300ER has proven to be very popular with a number of airlines using them for long range low density flights.
In 1993 Boeing launched the 767-300F General Market Freighter. Changes include strengthened undercarriage and wing structure, a cargo handling system, no cabin windows and a main deck freight door. Capacity is 24 containers. The further stretched 767-400 is described separately.
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