Patent ID: 7267300
Filing Date: 2007-09-11
Classification: B64C,B64D,F16H

Abstract:
1. An aircraft comprising: an airframe having a forward end, and an aft end opposite said forward end; a power plant mounted on the airframe; at least two propellers rotatably mounted on the airframe and powered by the power plant for moving the aircraft in a generally forward direction during operation of said propellers, each propeller having an axis of rotation that extends approximately parallel with a longitudinal axis extending between the forward and aft ends of the airframe; at least two counter-rotatable fans sets mounted on the airframe and powered by the power plant for providing upward lift to the aircraft during operation of said fan sets; wherein the airframe comprising a fuselage and at least two wings extending laterally from the fuselage; a nose is positioned at the forward end of the airframe; at least one of said propellers is positioned on each of said wings; at least one of said counter-rotatable lift fan sets is positioned on each of said wings; at least one of said counter-rotatable lift fan set is disposed in the nose; each of said propellers has a plurality of propeller blades; and each of said fans sets has a plurality of fan blades.