Sailboat control apparatus

Details Sailboat control apparatus Sailboat control apparatus

1976-08-25

1977-08-30

Blix, Trygve M.

Ships

Keels

Rocking

114133, 114136, 114140, B63B 4100

Patent

active

040447030

ABSTRACT:
A sailboat pivotally carries a pair of weighted complementary shaped keels for independent rotation about a common longitudinally directed medial hinge axis for influencing the roll, moment of inertia and draft of the boat. The keels are independently supported at variable angles with respect to the vertical by lines directed upward along opposite sides of the boat. The upper ends of the lines are attached to a winch mechanism within the boat which includes one rotatable drum for varying the angle between the keels while maintaining the orientation of the angle bisector substantially constant and another rotatable drum for varying the orientation of the angle bisector while maintaining the angle between the keels substantially constant. A bolt carried slideably by the keels selectively locks the keels together for rotation as a unit. The bolt is remotely operated from within the boat via a controlling cable.

REFERENCES:
patent: 61049 (1867-01-01), Chambers

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