Sail-type windmill wheel
Segmented rotor blade trim tab
Segmented vertical axis air rotor and wind generator apparatus
Segmented vertical axis air rotor and wind generator apparatus
Self-adjusting torque-responsive variable-pitch boat propeller
Self-fairing windmill vane
Self-feathering propeller
Self-feathering rotary wing
Self-regulating windmill
Semi-articulated flexstrap
Semi-rigid rotors for rotary wing aircraft
Sheet metal fan assembly
Sheet metal fan assembly
Shock absorbing clutch assembly for marine propeller
Shock-absorbing propeller assembly
Simplified rotor head fairing
Snubber
Snubber assembly for a rotor assembly having ducted, coaxial cou
Snubber bearing mounting assembly for bearingless rotors
Snubber-bearing with combined elastomer laminates