![]() ![]() By 1985 the ETOPS rule was modified to 120-minutes, with the possibility of extension to 180-minutes for operators who could prove one year of issue-free service at ETOPS 120, allowing twin-engine aircraft to more economically service routes which had been held tightly by the Boeing 727, McDonnell Douglas DC-10, and Lockheed L-1011 TriStar. When Boeing requested a waiver from the 60-minute Extended Range Twin Operations (ETOPS 60) rule for the 767-200ER, the administration re-affirmed the need for the 60-minute rule with exception to the Airbus A300 which could continue to operate under an ETOPS 90 waiver in specified regions. Up until the 1980s, FAA policy had been that twin-engine jet aircraft could not operate overwater further away from a land-based divert airport than 60 minutes at the single-engine cruise speed. The type was meant to provide a middle-ground in seating within the wide body jet airliner category between the Boeing 767 (767-300: 210 seats in 3-class config) and the 747 (747-400: 416 seats in 3-class config) with the first variant, the 777-200, delivered with 305 seats in a 3-class configuration.įurther, the 777 served as a replacement to tri-motor jet airliners. The Boeing 777, commonly pronounced " Triple Seven" is a wide-body jet airliner manufactured by Boeing Commercial Aircraft beginning in 1995. ![]()
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