Sailboat rig

Details Sailboat rig Sailboat rig

1980-12-12

1983-01-11

Blix, Trygve M.

Ships

Watercraft with means used in providing sailpower

Having specifically defined hull shape

114107, B63H 904

Patent

active

043676880

ABSTRACT:
Sailboat having twin booms, doubled sail and rotatable mast permits conventional sailing with both booms and sail sections on same tack or with booms spread, wing and wing, to run before the wind or on a reach. Sail may be reefed or furled by rotating the mast.

REFERENCES:
patent: 2107303 (1938-02-01), Ljungstrom
patent: 3310017 (1967-03-01), Dyer
patent: 3426719 (1969-02-01), Mizell
patent: 3851610 (1974-12-01), Greene
patent: 4186680 (1980-02-01), Harpole
patent: 4230060 (1980-10-01), McCoy
Sail, Theory and Practice, by C. A. Marchaj, 1964, p. 100 and FIG. 64.
James H. Kyle, "The Butterfly Rig", Cruising World, pp. 32-34, Mar. 1978.
McCloskey, R. G. "The Wind is Free", Rudder vol. 72, No. 1; Jan. 1956.

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