71947 ⎘
Propellers, e.g. of ducted type; Features common to propellers and rotors for rotorcraft; Hub construction; Blade mountings for variable-pitch blades variable only when stationary
Pitch-fold lock
#2Precision blade pitch adjustment
#3Pitch-fold lock
#4Variable pitch fan blade system
#5Aircraft seat with adjustable armrest
#6Open rotor with fixed guide vane/stator