Pratt & Whitney PW4000
The engines of the series Pratt & Whitney PW4000 turbofan are or turbofan engines with high bypass ratio. The series was developed by Pratt & Whitney in the early 1980s as the successor to the JT9D series for use on wide-body aircraft and first flew in 1987 in commercial operation.
Meanwhile, the series is divided into three subtypes PW4000 -94, PW4000 -100 and PW4000 -112, where the digits indicate the diameter of the fan in inches after the semicolon. In marketing, however, the thrust is in the name, eg PW4084 for the variant PW4000 -112 with 84,000 lbf ( 374 kN) thrust.
Use
The variant PW4000 -94 comes with the aircraft types Airbus A300-600/A310-300, Boeing 767-200/767-300/767-400ER, Boeing 747-400 and McDonnell Douglas MD -11 are used. The thrust range is 52000-62000 lbf ( 231-283 kN).
The variant PW4000 -100 is a derived version of the PW4000 -94 and has been specially developed for the Airbus A330. The thrust range is 64500-68600 lbf ( 287-305 kN). The PW4000 -100 was the first engine in the history of aviation, which was approved by the ETOPS regulations of the ICAO even before its commercial use. In November 2007, P & W began development of improved variant PW4000 -100 Advantage70TM. This has mid-2008 started its flight test and to a thrust increase of two percent and fuel savings of one percent and savings on maintenance costs reach .. Since 2009, both new engines PW4170 Advantage 70 as well as upgrades for existing engines will be offered.
The variant PW4000 -112 is a specially adapted version for the Boeing 777 and has a thrust range 74000-98000 lbf ( 329-436 kN). The version with the sales designation PW4084 was the so-called launch engine, so the engine, which is the launch customer had selected for his aircraft. It was in June 1995 with United Airlines in commercial operation.
Specifications and versions
Designation system of the individual versions
The manufacturer used in the PW 4000 series is a four-digit numbering to identify the engine versions. The first digit of the four digit number indicates the series ( in this case, always 4 for 4000 series ). The second digit refers to the aircraft manufacturer for which the engine is approved. Here is the zero for Boeing 767, 747, 777; the one for Airbus A300, A310, A330; the four for the MD - 11th The third and fourth digit designates the certified boost in U.S. pound ( lbf ). Here, only the tens of thousands and thousands digit is shown. Example: A PW4168 engine is a 4000 series, which is certified for Airbus ( A330 ) and a certified thrust of 68,000 lbf has.