The Aeronautical Journal, Volume 73Royal Aeronautical Society, 1969 - Aeronautics |
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Page 820
... indicated that this trajectory is essentially independent of the parameter C / o . Future analytical research will be directed toward refinement of ROTOR POWER , TORQUE , LIFT BLADE LOADING ROTOR NOISE DIFFICULTY FOR ACCURATE PREDICTION ...
... indicated that this trajectory is essentially independent of the parameter C / o . Future analytical research will be directed toward refinement of ROTOR POWER , TORQUE , LIFT BLADE LOADING ROTOR NOISE DIFFICULTY FOR ACCURATE PREDICTION ...
Page 821
... indicate that the characteristic slapping noise associated with rotors probably originates from the intersection of ... indicated a direct coupling between the blade loading and the gener- ated noise , both of which can be traced to the ...
... indicate that the characteristic slapping noise associated with rotors probably originates from the intersection of ... indicated a direct coupling between the blade loading and the gener- ated noise , both of which can be traced to the ...
Page 826
... indicated is the potential reduction in blade rotor bending moment for a four - bladed system employed in a stopped rotor concept , and the considerable increase in propeller efficiency for a tilt rotor application at 350 kt ( 190 m / s ) ...
... indicated is the potential reduction in blade rotor bending moment for a four - bladed system employed in a stopped rotor concept , and the considerable increase in propeller efficiency for a tilt rotor application at 350 kt ( 190 m / s ) ...
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Aero aerodynamic aerofoil Aeronautical Journal aeroplane air transport airline airport angle application associated Aviation blade boundary layer British BRITISH AIRCRAFT CORPORATION cargo CEng civil Civil Air Transport configuration conventional cost cross-coupling dynamic effect engine equipment fibres field Figure flight flow flying FRAeS fuselage future Harrier Hawker Siddeley Aviation helicopter hover Illustrated increase industry lecture lift lift-fan London Mach number man-powered flight mechanical ment methods military NASA TN noise level obtained operation organisation outer space paper passengers performance pilot plate polymers possible present problem programme propulsion ratio rotorcraft Royal Aeronautical Society Royal Air Force satellite shown in Fig speed STOL structure Sud Aviation supersonic tail rotor take-off technical techniques Technology temperature thrust tion traffic turbine V/STOL vector vehicle velocity VTOL weight Westland wing