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The Rolls-Royce Conway, the world's first production turbofan, had a bypass ratio of 0.3, similar to the modern General Electric F404 fighter engine. Civilian turbofan engines of the 1960s, such as the Pratt & Whitney JT8D and the Rolls-Royce Spey, had bypass ratios closer to 1 and were similar to their military equivalents.
The engine was developed for the Yak-42, An-72 and An-74 aircraft and was very advanced when it was first introduced in the 1970s. The engine was designed by Vladimir Lotarev . The first test runs began in 1971, first flight tests followed in 1974, serial production began in 1977.
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.
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The AI-25 was designed to power the Yakovlev Yak-40 tri-jet airliner, often called the first regional jet transport aircraft, and is the starting point for the Lotarev DV-2 turbofan engine. [1] The project was launched in 1965, with the AI-25s first test flight in 1966, and finally cleared for production in 1967.
Though the USAF had wanted the TF30, Pratt & Whitney was unable to meet the production timetable, because its facilities were already committed to producing other engines. Instead of producing the TF30 under license for P&W, the Allison Engine Company offered to the Air Force its TF41 turbofan, a license-built version of the RB.168-25R Spey. [9]
The engine was produced in 1970 through 1987 and was used on the Tu-134FA, Tu-134B, and Tu-134AK aircraft. [1] In 1980, the D-30 engine series III, a further improvement, was created with the maximum thrust of 6930 kgf (with preserving it at up to до = +C) [clarify]. The number of the engine compressor stages was increased to 5, the gas ...
The 36MT turbofan engine developed for the Kh-59M class of missiles is manufactured by NPO Saturn of Russia. [8] Target coordinates are fed into the missile before launch, and the initial flight phase is conducted under inertial guidance. At a distance of 10 km (6.2 mi) from the target the television guidance system is activated.