Amphibious aircraft with aerodynamic/hydrodynamic sponsons

Details Amphibious aircraft with aerodynamic/hydrodynamic sponsons Amphibious aircraft with aerodynamic/hydrodynamic sponsons

B - Operations, Transporting

64

C

B64C 35/00 (2006.01) B60F 5/02 (2006.01)

Patent

CA 2281023

A hydrodynamic/aerodynamic amphibious aircraft (1) has a fuselage (10) with sponsons (100) extending outwardly and downwardly on either side of the underbelly (5) to define an inverted channel (15) having a substantially constant cross section. Each sponson has a forward portion (110) fixed to the fuselage and a movable aft portion (120). The aft portion tapers smoothly to a trailing edge (122). When the aft portion is in the flight position the forward and aft portions form a smooth low-drag symmetrical airfoil aerodynamic shape. When the aft portion is raised a hydrodynamic step (112) is left on a lower surface of the forward portion, which turns each of the forward portions into a planing hull.

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