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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.
The PW4000 series is the successor to the JT9D, and powers some Airbus A310, Airbus A300, Boeing 747, Boeing 767, Boeing 777, Airbus A330 and MD-11 aircraft. The PW4000 is certified for 180-minute ETOPS when used in twinjets. The first family has a 94-inch (2.4 m) fan diameter and is designed to power the Boeing 767, Boeing 747, MD-11, and the ...
X describes the aircraft manufacturer for which the engine is approved. A "0" stands for Boeing; "1" for Airbus; and "4" for the McDonnell Douglas MD-11. YZ denotes the certified thrust in US pounds (lbf) in pro-mile fraction. Example: A PW4090 identifies a PW4000 series engine certified for Boeing (777-200ER) and has a certified thrust of ...
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.
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. The 747's first flight took place on February 9, 1969, and the 747 ...
Among its six active jets is one Boeing 747-400, per ch-aviation data. 88-year-old King Salman travels with a 1,500-person entourage and two Mercedes Benz limousines, The Points Guy reported.
Rolls-Royce tried unsuccessfully to sell the RB211 to Boeing in the 1960s, but the new -524 offered significant performance and efficiency improvements over the Pratt & Whitney JT9D which Boeing had originally selected to power the 747. In October 1973 Boeing agreed to offer the RB211-524 on the 747-200, and British Airways became the first ...
The gas-guzzling four-engine 747 is costly and inefficient compared to newer twin-engine widebodies, like Boeing's 777 and 787 and Airbus' A330neo and A350, that airlines now more readily rely on.