Patent ID: 9004393
Filing Date: 2015-04-14
Classification: B64C

Abstract:
1. An aircraft, comprising: a fuselage including a forward portion, a central portion, and an aft portion, the fuselage defining a longitudinal axis extending through the forward portion, the central portion, and the aft portion; an engine mounted to the fuselage; and first and second wings rotatably mounted to the central portion of the fuselage, wherein the axis around which the wings rotate substantially coincides with the longitudinal axis, wherein the first and second wings are mechanically driven by the engine to counterrotate in rotational planes and create lift during flight, wherein the first and second wings are positioned to provide lift to support at least a portion of the aircraft's weight during horizontal flight while the first and second wings are not rotating; wherein the tip of the first wing sweeps in a plane generally defined by the tip of the first wing and the longitudinal axis, and the tip of the second wing sweeps in a plane generally defined by the tip of the second wing and the longitudinal axis, and wherein the tip of each of the first and second wings is swept to a location adjacent the fuselage during horizontal flight.