Amphibious aircraft

Details Amphibious aircraft Amphibious aircraft

1997-02-21

2000-09-05

Barefoot, Galen L.

Aeronautics and astronautics

Aircraft, heavier-than-air

Airplane sustained

244 55, 244106, B64C 3500

Patent

active

061130281

ABSTRACT:
An amphibious airplane having an engine assembly mounted at a top center location in the fuselage, and a tail assembly having a horizontal fin in an elevated position so as to be in the propeller air stream. A lift augmenting aerodynamic surface is positioned at the top middle portion of the aircraft fuselage, with the propeller being at the concavely curved rear end of the lift augmenting surface. A pair of platforms are positioned on opposite sides of the fuselage at lower locations adjacent to a passenger section of the aircraft. These platforms are aerodynamically aligned and also have strakes extending forwardly therefrom along opposite sides of the fuselage. In cruise mode, the increased velocity imparted to the propeller air stream acts on the horizontal fin to exert a downward force, with the various forces of the airplane balancing each other. With increased power setting of the engine, the increased velocity of the propeller air stream enables the horizontal tail fin to exert a greater downward force to maintain stable operation of the aircraft.

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