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The 757-300, the stretched and longest version of the Boeing 757 variants, entered service with Condor in 1999. [71] With a length of 178.7 ft (54.5 m), the type is the longest single-aisle twinjet ever built, [ 71 ] coming in just shorter than the 187.4 ft (57.1 m) quad-jet DC-8-61/63 .
The 131-9D initially was designed for the McDonnell Douglas MD-90 series; the 131-9B became standard equipment on Boeing 737NG; the 131-9A on the Airbus A320 family. [4] The 131-9C has entered service aboard the Airbus A220 (formerly Bombardier C-Series). The 131 Series uses a two-stage axial turbine and a single generator which starts the APU. [5]
The first German jet engines built during the Second World War used a mechanical APU starting system designed by the German engineer Norbert Riedel.It consisted of a 10 horsepower (7.5 kW) two-stroke flat engine, which for the Junkers Jumo 004 design was hidden in the engine nose cone, essentially functioning as a pioneering example of an auxiliary power unit for starting a jet engine.
Boeing C-32A Ilyushin Il-96M The Pratt & Whitney PW2000 , also known by the military designation F117 and initially referred to as the JT10D , is a series of high-bypass turbofan aircraft engines with a thrust range from 37,000 to 43,000 lbf (160 to 190 kN).
The 767 has the same cockpit windows as the Boeing 757. In addition to shared avionics and computer technology, the 767 uses the same auxiliary power unit, electric power systems, and hydraulic parts as the 757. [31] A raised cockpit floor and the same forward cockpit windows result in similar pilot viewing angles. [116]
United will replace its aging Boeing 757s with the Airbus A321XLR starting in December 2025. The narrowbody can fly up to 5,400 miles nonstop, making it ideal for lower-demand long-haul routes.
But Boeing never built a replacement for the 757, which was discontinued in 2004. This gave Airbus an opportunity to seize the transatlantic narrow-body market with its long-range A321neo family.
Airlines commonly order aircraft with special features or options, but Boeing builds certain models specifically for a particular customer. The Boeing 707-138B was a shortened-fuselage, long-range model only sold to Qantas. The Boeing 757-200M was a single-example model built for Royal Nepal Airlines (now called Nepal Airlines). This plane ...