втулка рульового гвинта
main-rotor head / main-rotor hub
main-rotor hub / main-rotor head
anti-torque rotor hub
main rotor hub
rotor hub
tail rotor blade
loss of tail rotor effectiveness
tail rotor blade angle
tail rotor blade casing
tail rotor control cable
tail rotor drive shaft
tail rotor drive shaft in pylon
tail rotor gear box
tail rotor head casing
tail rotor pylon
tail rotor rotation direction
tail rotor slip ring assembly
three-blade tail rotor
tail rotor
lateral dual rotor system / side-by-side rotor helicopter
hub and spokes system
hub assembly
portal hub
clutch disk hub
idler wheel hub cap
worm-wheel hub
direct and overdrive clutch hub
fan hub clutch
hub brake
hub disk
hub guard
hub stud