Widespread use of Pratt & Whitney PW4000 engines


Pratt & Whitney PW4000

The Pratt & Whitney PW4000 is a family of high-bypass turbofan aircraft engines produced by Pratt & Whitney as the successor to the JT9D. It was first run in April 1984, was FAA certified in July 1986, and was introduced in June 1987. With thrust ranging from 50,000 to 99,040 lbf (222 to 441 kN), it is used on many wide-body airliners.

The 112-inch (2.8 m) fan diameter PW4098 used on the Boeing 777
National originUnited States
ManufacturerPratt & Whitney
First runApril 1984[1]
Major applicationsAirbus A300-600/A310
Airbus A330
Boeing 747-400
Boeing 767/KC-46
Boeing 777
McDonnell Douglas MD-11
Number built2,500 (June 2017)[2]
Developed fromPratt & Whitney JT9D
Developed intoEngine Alliance GP7000


A PW4098 from behind

The 52,000-62,000 lbf (230-275 kN), 94 in (2.4 m) -fan PW4000 made its first run in April 1984, was FAA certified in July 1986, and was introduced in June 1987. It powers the Airbus A300-600 and A310-300, Boeing 747-400 and 767-200/300, and McDonnell Douglas MD-11 widebodies.[1]

Development of the 64,000–68,000 lbf (280–300 kN), 100 in (2.5 m)-fan version began in December 1991 for the A330, was FAA certified in August 1993, and made its first flight two months later. It received 90min ETOPS approval at introduction in December 1994, and 180min ETOPS approval in July 1995. In January 2000, it was the A330 market leader with more than half of the installed base and one million hours, more than twice that of each competitor.[1] The Advantage70 program was launched at the 2006 Farnborough Airshow, increasing thrust to 70,000 lbf (311 kN), and reducing fuel burn by about 1% and maintenance costs by around 15%.[citation needed]

For the Boeing 777, the 84,000–98,000 lbf (370–440 kN), 112 in (2.8 m)-fan version development began in October 1990, achieved 100,000 lbf (440 kN) in May 1993, and was approved for 180min ETOPS at service entry in June 1995. The 90,000 lbf (400 kN) PW4090 entered service in March 1997. The 98,000 lbf (440 kN) PW4098 received FAA certification in July 1998 and introduced on the Boeing 777-300 in September 1999.[1] The 777 launch engine, it entered service on 7 June 1995, with United Airlines.

In 2000, over 2,000 PW4000 engines had accumulated over 40 million hours of service with 75 operators.[1] In 30 years between June 1987 and 2017, more than 2,500 engines have been delivered, logging more than 135 million flight hours.[2]



Variants and applications


See also


Further reading

Last edited 1 hour ago by


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Published by technofiend1

Kazan- Kazan National Research Technical University Казанский национальный исследовательский технический университет имени А. Н. Туполева he graduated in Economics in 1982

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