Patent ID: 6974106
Filing Date: 2005-12-13
Classification: B64C

Abstract:
1. An aircraft capable of both conventional and vertical take off and landing (VTOL) flight comprising: a fuselage; a set of canard wings mounted at or below the fuselage at the front of the aircraft; two sets of wings, including a bottom wing and top wing mounted in biplane fashion, the bottom wing mounted so that the wing center of lift is located slightly ahead of the aircraft center of gravity, the top wing mounted so that the top wing center of lift is located slightly behind the aircraft center of gravity, and the bottom wing and top wing mounted so that the combined center of lift from the bottom wing and top wing is at the aircraft center of gravity; an exbedded ducted fan mounted in a large circular opening in the center of said top wing wherein exbedded means the duct diameter extends beyond the outer edge of the fuselage at the center of the top wing, the exbedded ducted fan including a shroud having a ducted fan bellmouth and a rotor disposed in the shroud, said bottom wing having a central opening for the exhaust airstream from the ducted fan and said central opening extending rearward and being larger than the circular opening in the top wing; a horizontal stabilizer mounted to the rear and above the top wing; a central tailfin mounted above and behind the ducted fan bellmouth and supporting the horizontal stabilizer, said central tailfin mounted on top of the rear third of the fuselage to form a “T” tail with the horizontal stabilizer; and a first rudder mounted in the central tailfin.