Ships – Apparatus held by or attached to rider to control sailboard... – Foot strap means
Patent
1989-03-20
1990-06-26
Peters, Jr., Joseph F.
Ships
Apparatus held by or attached to rider to control sailboard...
Foot strap means
114 89, 114103, B63H 904
Patent
active
049362364
ABSTRACT:
A fully symmetrical sailboat includes a mechanism that balances the moment of a sailor on a boom against the force of the wind on the sail in such a way that the hull remains level. The sailboat comprises a hull with both lateral and longitudinal symmetry and a rig consisting of a short, rotatable mast to which is attached by hinges a sail of symmetrical plan and a boom bearing a slidable seat. The rig as a whole can assume any angular position about a vertical axis. Under pressure of the wind, the foot of the sail can swing outward. The sail is mechanically linked to the seat boom so that its outward motion lifts the seat boom's outer end. The linkage is such that over a wide range of wind forces and regardless of the sailor's position along the boom, the rig as a whole exerts substantially no net moment on the hull. Foot operable rails are used to adjust the angle of the rig about the vertical axis, hence the angle of the sail to the wind. Steering is controlled by hand held reins connected to a symmetrical, linked pair of hydrofoils, which serve as both rudders and centerboards. The sailboat's combination of symmetry, balance and convenient controls provides an increased degree of maneuverability coupled with high speed.
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Peters Jr. Joseph F.
Swinehart Ed
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