Sailing craft comprising a tilting rigid sail system
OwnerDale William Hancharinventor
Life of this patent
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Abstract
A sailing craft propelled by a tilting sail system comprising an aerofoil sail capable of omni-directional attitude for wind propulsion. The sail is fixed to the craft in such a manner as to permit omni-directional attitude. Sail control means allows the sail placement in a forward propulsion attitude relative to wind direction. The sail is rigid and has an asymmetric shape.
Claims20
A sailing craft comprising a tilting sail system, said sailing craft having a hull having a bow and a stern, a port side and a starboard side, said sail tilting sail system comprising:
- a. a sail comprising an aerofoil member capable of omni-directional attitude for wind propulsion;
- b. aerofoil member support means for fixing said aerofoil member to the sailing craft and permitting omni-directional attitude;
- and,
- c. Aerofoil member control means for placing the aerofoil member in a forward propulsion attitude relative to wind direction.
A sailing craft comprising a tilting sail system, said sailing craft having a hull having a bow and a stern, a port side and a starboard side, said sail tilting sail system comprising:
- a. a self weather cocking sail comprising a rigid and asymmetric aerofoil member capable of omni-directional attitude for wind propulsion;
- b. aerofoil member support means for fixing said aerofoil member to the sailing craft and permitting omni-directional attitude;
- c. aerofoil member control means for placing the aerofoil member in a forward propulsion attitude relative to wind direction, wherein aerofoil member control means comprises means for controlling the attitude of the aerofoil member for optimizing aerofoil inclination and surface area to wind direction;
- and, wherein means for controlling the attitude,
- d. the aerofoil member comprises a leading edge, a trailing edge, an upper camber, a chord, a span, a centre line, a port side, a starboard side and a chord line, and wherein said span is greater than said chord.
Dependencies are inferred from the claim text.