On the Flying Qualities of Helicopters
Designation of Direction of Rotation of Helicopter Rotors
Gas Turbine Engine Power Take-Off Pad Requirements
Recent European Developments in Helicopters
H°°-design and the improvement of helicopter handling qualities
The Effect of Installation Power Losses on the Overall Performance of a Helicopter
Operational history and experience with boeing helicopters
Place of helicopter in megalopolitan transport system
Operational concept of integrated helicopter avionics system
Helicopters and propeller-type VTOL aircraft in light of technologies
Transportation of drilling equipment by helicopters
Theoretical method for calculating flexure and stresses in helicopter rotor blades
Present state of technology and future of helicopters
Flight requirements for operation of rotorcraft