Vertical sail boat

Details Vertical sail boat Vertical sail boat

1993-07-16

1994-08-16

Sotelo, Jesus D.

Ships

Apparatus held by or attached to rider to control sailboard...

Foot strap means

114 56, 114 59, B63B 112

Patent

active

053376900

ABSTRACT:
One embodiment of a vertical watercraft for stable transport in rough seas includes a normally above-waves sail, a normally vertically-disposed elongate hull being normally substantially submarine in operation, and an adjustable ballast device. The ballast device is disposed within the hull for maintaining the sail above water and for regulating trim, attitude and bottom clearance of the hull under different loads and operating conditions. In another embodiment, the vertical watercraft includes a normally above-waves inflatable sail, a mast connected to the sail, a folding raft connected to the mast, and a normally vertically-disposed, elongate, folding hull being connected to the raft and normally substantially submarine in operation. A differential air pressure may be applied through apertures in the sail for curving the sail, and a differential air pressure may be applied through apertures in the hull for curving the hull.

REFERENCES:
patent: 4054104 (1977-10-01), Haselton
patent: 4656959 (1987-04-01), Moisdon
patent: 4843987 (1989-07-01), Samuels

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