Aerodynamic control system for high speed motorboats

Details Aerodynamic control system for high speed motorboats Aerodynamic control system for high speed motorboats

1987-07-27

1989-05-09

Basinger, Sherman D.

Ships

Hull or hull adjunct employing fluid dynamic forces to...

Having airfoil

114272, B63B 132

Patent

active

048278629

ABSTRACT:
In one embodiment, the aerodynamic control system includes a pair of airfoil shaped vertical stabilizing structures rising above the aft deck portion of the motorboat. A vertical stabilizer is disposed on either side of the deck. Each vertical stabilizer includes a movable rudder along its aft region which arcuately moves about an axis longitudinally extending through the rudder. The control system also includes an airfoil shaped elevator structure having end portions fixed to inboard opposing top sections of the vertical stabilizers and an arcuately movable elevator portion extending between the fixed first and second ends. A control mechanism arcuately moves the elevator portion thereby altering the angle of attack attitude of the elevator. Another control mechanism synchronously moves the rudders to assist steerage of the motorboat.

REFERENCES:
patent: 1401934 (1921-12-01), Zahm
patent: 1747565 (1930-02-01), Yonkese
patent: 2215919 (1940-09-01), Finley
patent: 2354453 (1944-07-01), Gazda
patent: 2849978 (1958-09-01), Durham
patent: 3096952 (1963-07-01), Roppel
patent: 3271954 (1966-09-01), Marsee et al.
patent: 3903832 (1975-09-01), Ishida
patent: 4095549 (1978-06-01), Williams
patent: 4237811 (1980-12-01), Montez
patent: 4685641 (1987-08-01), Kirsch et al.

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