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The Pratt & Whitney JT9D high-bypass turbofan engine was developed for the Boeing 747. The JT9D program was launched in September 1965 and the first engine was tested in December 1966. It received its FAA certification in May 1969 and entered service in January 1970 on the Boeing 747.
GE Aviation, part of the General Electric conglomerate, currently has the largest share of the turbofan engine market. Some of their engine models include the CF6 (available on the Boeing 767, Boeing 747, Airbus A330 and more), GE90 (only the Boeing 777) and GEnx (developed for the Boeing 747-8 & Boeing 787 Dreamliner and proposed for the Airbus A350) engines.
GEnx on 747-8I prototype. As of 2016, the GEnx and the Rolls-Royce Trent 1000 were selected by Boeing following a run-off between the three big engine manufacturers. The GEnx uses some technology from the GE90 turbofan, [1] including swept composite fan blades and the 10-stage high-pressure compressor (HPC) featured in earlier variants of the engine.
The 112-inch (2.8 m) fan diameter PW4098 used on the Boeing 777: Type Turbofan: National origin: United States Manufacturer Pratt & Whitney: First run April 1984 [1] Major applications: Airbus A300-600/Airbus A310 Airbus A330 Boeing 747-400 Boeing 767/KC-46 Boeing 777 McDonnell Douglas MD-11 Scaled Composites Stratolaunch: Produced 1984 ...
The CF6-80C2 is currently certified on fifteen commercial and military widebody aircraft models including the Boeing 747-400, and McDonnell Douglas MD-11. The CF6-80C2 is also certified for ETOPS-180 for the Airbus A300, Airbus A310, Boeing 767, KC-767A/J, E-767J, Kawasaki C-2, and (as the F138) the Lockheed C-5M Super Galaxy and VC-25A.
Aircraft around the world have been steadily getting cleaner since 1969 when the first high-bypass turbofan engines were used on the new Boeing 747 aircraft. In the years since there have been ...
In April 1966, Pan Am ordered 25 Boeing 747-100 aircraft, and in late 1966, Pratt & Whitney agreed to develop the JT9D engine, a high-bypass turbofan. On September 30, 1968, the first 747 was rolled out of the custom-built Everett Plant , the world's largest building by volume .
In 1977, 583 people were killed on an airport runway on the Canary Island of Tenerife after a KLM Boeing 747 attempted to take off. There was heavy fog and the Boeing crashed into a Pan Am 747 ...