542
P. Liu
Fig. 7.134 B747-8 landing gear puts down landing state
Fig. 7.135 B747-8 landing gear (fuselage single pillar 4 wheels and wing single pillar
4 wheels)
the airframe noise is equivalent to the engine noise, even exceeding the engine
noise, as shown in Figs. 7.139 and 7.140.
Since most of the modern large airliners use multi-element airfoils with
leading edge slats and trailing edge flaps as the lifting device, during the
landing of the aircraft, the leading edge slat, trailing edge flap, and landing
P. Liu
Fig. 7.134 B747-8 landing gear puts down landing state
Fig. 7.135 B747-8 landing gear (fuselage single pillar 4 wheels and wing single pillar
4 wheels)
the airframe noise is equivalent to the engine noise, even exceeding the engine
noise, as shown in Figs. 7.139 and 7.140.
Since most of the modern large airliners use multi-element airfoils with
leading edge slats and trailing edge flaps as the lifting device, during the
landing of the aircraft, the leading edge slat, trailing edge flap, and landing