초록 ▼

An aircraft provided with airfoils of the non-rotating type that are configured and arranged to provide greater lift while at the same time offering stable flight at ultra-low airspeeds. The airfoils are arranged as a biplane and consist of a fixed wing and a movable wing which are designed so as to

An aircraft provided with airfoils of the non-rotating type that are configured and arranged to provide greater lift while at the same time offering stable flight at ultra-low airspeeds. The airfoils are arranged as a biplane and consist of a fixed wing and a movable wing which are designed so as to permit a much steeper takeoff and landing angle as well as offering more efficient flight at higher speeds with greater inherent safety.

대표청구항 ▼

An aircraft having a fuselage and empennage with a fixed lower wing attached to said fuselage, an upper wing pivotally connected at its center of lift on spaced means carried by said fuselage and with said upper wing being disposed in spaced parallel relationship to said lower wing, power means carr

An aircraft having a fuselage and empennage with a fixed lower wing attached to said fuselage, an upper wing pivotally connected at its center of lift on spaced means carried by said fuselage and with said upper wing being disposed in spaced parallel relationship to said lower wing, power means carried by said upper wing for propelling said aircraft, and adjustable means carried by said fuselage in spaced relation to said spaced means and connected to said upper wing to unload lift and drag aerodynamically through a small minus and plus degrees movement of said upper wing about said center of lift to transfer major lift of said upper wing to said lower wing and reduce total drag of said upper wing for optimum cruise and high speed flight.