Geared turbofan
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The geared turbofan is a type of turbofan aircraft engine with a planetary gearbox between the low pressure compressor / turbine and the ducted fan, enabling each to spin at its optimum speed. The ben
An ALF 502 geared turbofan from a Bombardier Challenger 600
British Aerospace 146
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The British Aerospace 146 is a short-haul and regional airliner that was manufactured in the United Kingdom by British Aerospace, later part of BAE Systems. Production ran from 1983 until 2001. Produc
Geared turbofan
…commercial airline service, uses a planetary fan drive gear system with an approximately 3:1 reduction ratio, enabling bypass ratios above 12:1.The BAe 146 is fitted with geared turbofans and is still one of the quietest commercial aircraft. A large part of the noise reduction is due to reduced fan tip…
A Lufthansa Avro RJ85 (ex BAe-146-200), the midsize variant
Logo BAE Avro RJ
The prototype made its first flight on 3 September 1981.
EFIS cockpit in the 1993 upgraded Avro RJ