The Boeing 757 is a mid-size, narrow-body twin-engine jet airliner manufactured by Boeing Commercial Airplanes.
Passenger versions of the twinjet have a capacity of 186 to 289 persons and a maximum range of 3,100 to 3,900 nautical miles (5,700 to 7,200 km), depending on variant and cabin configuration.
The 757 has been produced in two fuselage lengths: the original 757-200 entered service in 1983, followed by the stretched 757-300 in 1999.
A production freighter version, the 757-200PF, has been sold along with a combi model, the 757-200M.
Passenger models have also been converted to the 757-200SF cargo specification.
The Rolls-Royce RB211 is a family of high-bypass turbofan engines made by Rolls-Royce plc and capable of generating 37,400 to 60,600 pounds-force (166 to 270 kilonewtons) thrust.
Originally developed for the Lockheed L-1011 (TriStar), it entered service in 1972 and was the only engine to power this aircraft type.
Although the costs of development forced Rolls-Royce Limited into bankruptcy and nationalisation by the British government, the company survived and the RB211 became the first true three-spool engine, which also turned Rolls-Royce from a small player in the airline industry into a global competitor.
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