Assembly for providing flexure to blade system
Automatic regulating device for keeping constant the speed of wi
Automatically controlled wind propeller and tower shadow elimina
Automotive cooling fan with biased flexible blades
Auxiliary helicopter rotor
Axial fan
Axial fan with automatically controlled variable pitch blades
Axial fan with blades that automatically adjust to the direction
Axial flow fan impeller
Axial flow fans
Axially compact ram air turbine
Axisymmetric elastomeric bearing assembly for helicopter rotors