Variable length blade

Variable pitch aircraft propeller

Variable pitch aircraft propeller control with two-speed...

Variable pitch propeller

Variable pitch propellers

Variable propeller system incorporating a forward transfer...

Variable speed propeller system

Variable stiffness rotor

Variable trailing edge geometry and spanload control

Variable-pitch multi-blade propeller having individually...

Vectorable exhaust nozzle for gas turbine engines

Vehicle provided with a drag reducing low nose wing

Vehicle with propellers which are driven and controlled by...

Vehicle with vertical wings and a stabilizing torque system...

Vehicular attitude-control display

Vertical lift aircraft

Vertical lift aircraft

Vertical lift machine

Vertical lift machine

Vertical take-off aircraft