Geared turbofan
Turbofan engine with a gearbox used to drive its fan
Geared turbofan
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 benefit of the design is lower fuel consumption and much quieter operation. The drawback is that it increases weight and adds complexity.
Read on Wikipedia · Image Tosaka, CC BY-SA 3.0
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