High performance sailing craft

Details High performance sailing craft High performance sailing craft

1990-03-14

1991-10-08

Swinehart, Ed

Ships

Displacement-type hull

Multiple hulls

114 391, 114 91, B63B 100

Patent

active

050544110

ABSTRACT:
A pair of outrigger hulls are located on the ends of a wing, to which is movably attached a central hull which can be moved back and forth with respect to the outrigger hulls. A pivotable mast positioned on the central hull allows the central hull to be positioned near the leeward outrigger hull while leaning the mast towards the windward outrigger hull, thereby providing a lift to the craft and a reduction in displacement. Rotary wheels at each end of the wing allow crewmen stationed there to control the position of the central hull along the length of the wing and to control the slack and tautness of a pair of sail lines. A differential apparatus enables crewman to control the rudder from anywhere along the length of the wing independently of the central hull location along the length of the wing.

REFERENCES:
patent: 4638755 (1987-01-01), Butka
patent: 4706590 (1987-11-01), Hoyt

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