GEARED TURBOFAN ENGINE GEARBOX ARRANGEMENT
DRIVE
October 25, 2023
A three-spool turbofan engine (20) has a variable fan nozzle (35). The fan blades have a peak tip radius RT and an inboard leading edge radius RH at an inboard boundary of the flowpath. A ratio of RH to RT is less than about 0.40.
Discussion in the ATmosphere