B - Operations – Transporting – 64 – C
Patent
B - Operations, Transporting
64
C
B64C 27/82 (2006.01)
Patent
CA 2446191
A rotary-wing aircraft comprises a main rotor, a tail boom extending through an area of downwash from the main rotor, and first and second linear nozzles fixedly coupled to the tail boom. The first nozzle is adapted to discharge a sheet of fluid in a direction substantially tangential to an outer surface of the tail boom to divert the rotor downwash and thereby produce a force that counteracts the biasing torque of the main rotor. The rotary-wing aircraft further comprises a yaw-control member movably coupled to the tail boom. The second nozzle is adapted to discharge a sheet of fluid in a direction substantially tangential to an outer surface of the yaw-control member to further divert the rotor downwash and thereby increase the force that counters the main-rotor torque.
L'invention concerne un aéronef à voilure tournante, qui comprend un rotor principal, une poutre de queue s'étendant dans une zone de déflexion vers le bas établie à partir du rotor principal, ainsi que des première et seconde tuyères linéaires couplées fixes à la poutre de queue. La première tuyère libère une nappe de fluide dans une direction sensiblement tangente à une surface extérieure de la poutre de queue, déviant la déflexion susmentionnée et produisant donc une force qui contrecarre le couple de sollicitation du rotor principal. En outre, l'aéronef comporte un élément de commande de lacet couplé mobile à la poutre de queue. La seconde tuyère libère une nappe de fluide dans une direction sensiblement tangente à une surface extérieure de l'élément de commande de lacet, pour accentuer la déviation précitée et augmenter ainsi la force qui contrecarre le couple du rotor principal.
Carson Franklin D.
Gowling Lafleur Henderson Llp
LandOfFree
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