AIRCRAFT ROTOR BLADE OF SHAPE ADAPTED FOR ACOUSTIC IMPROVEMENT DURING AN APPROACH FLIGHT AND FOR IMPROVING PERFORMANCE IN FORWARD FLIGHT

AIRCRAFT ROTOR BLADE OF SHAPE ADAPTED FOR ACOUSTIC IMPROVEMENT DURING AN APPROACH FLIGHT AND FOR IMPROVING PERFORMANCE IN FORWARD FLIGHT

A blade of a rotor for a rotary wing aircraft. The blade presents relationships for variation in the sweep and in the chord of the profiles of sections of the blade, in particular in order to improve the twisting stiffness and the bending stiffness of the blade. The blade is then double-tapered and...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Hauptverfasser: LEUSINK Debbie, GARETON Vincent, ALFANO David
Format: Patent
Sprache:eng
Schlagworte:
AEROPLANES
AIRCRAFT
AVIATION
COSMONAUTICS
HELICOPTERS
PERFORMING OPERATIONS
TRANSPORTING
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Beschreibung
Zusammenfassung:A blade of a rotor for a rotary wing aircraft. The blade presents relationships for variation in the sweep and in the chord of the profiles of sections of the blade, in particular in order to improve the twisting stiffness and the bending stiffness of the blade. The blade is then double-tapered and it presents three sweeps, making it possible firstly to improve the aerodynamic performance of the blade in forward flight, and secondly to reduce the noise given off by the blade, in particular during an approach flight.