Sailboat

A sailing craft having a center hull, the hull having a deck, a port side, a starboard side, a bow and a stern in a longitudinal plane, an amidships between the bow and the stern, the craft comprising:

• an outboard port hull and an outboard starboard hull, said hulls being adjustably connected to the center hull by respective port and starboard bridge beams;
• an inverted substantially U-shaped mast having a port leg and a starboard leg, said legs having a juncture at an arcuate top, and when the port hull and the starboard hull are disposed outwardly for sailing, the port leg being connected to the port hull and the starboard leg being connected to the starboard hull;
• a primary boom having a first end, an opposite second end and a midpoint, the midpoint of the primary boom being rotatably mounted approximately above the amidships of the center hull and between the port leg and the starboard leg of the mast, wherein the primary boom may rotate through 360.degree. about a rotary axis in a plane parallel to the longitudinal plane of the center hull;
• a pair of secondary articulating booms, one pivotally connected to the first end of the primary boom and the other pivotally connected to the second end of the primary boom;
• a sail shape boom having a first end and an opposite second end, the first end of the sail shape boom slidably connected to the one articulating boom and the second end of the sail shape boom slidably connected to the other articulating boom, said sail shape boom being disposed in a longitudinal plane above the longitudinal plane of the primary boom, whereby, when the primary boom rotates through 360.degree., the sail shape boom also rotates through 360.degree., the ends of the sail shape boom avoiding contact with the mast;
• a sail having at least two edges, a head and a foot, the head of the sail being releasably attached to the top of the mast and the foot of the sail being attached to the sail shape boom;
• a cam having a base mounted on the hull deck, the cam being above the midpoint of the primary boom, the primary boom rotating around the cam, a first line connected from the cam to the one articulating boom, a second line connected from the cam to the other articulating boom, whereby when the primary boom rotates in a first direction, the first line is tightened and the second line is slackened such that the one articulating boom pivots, and when the primary boom rotates in a second opposite direction, the second line is tightened and the first line is slackened such that the second articulating boom pivots, whereby the luff and leach of the sail are interchangeable when the primary boom rotates through 180.degree. and the sailing craft passes through the wind without stalling the sailing craft by backloading the sail.

A sailing craft having a center hull, the hull having a deck, a port side, a starboard side, a bow and a stern in a longitudinal plane, an amidships between the bow and the stern, the craft comprising:

• an outboard port hull and an outboard starboard hull, each hull being a top surface, the top surfaces of said hulls being adjustably hingably connected to the center hull by respective port and starboard bridge beams, and means for moving and securing said outboard hulls adjacent to the respective port and starboard sides of the center hull for storage and transport wherein said hulls are in a substantially vertical and seaworthy position and means for moving and securing said outboard hulls outwardly from the center hull for sailing,
• further comprising each bridge beam having a first arm having an inboard end and an outboard end and a midpoint therebetween and a second arm having an inboard end and an outboard end, the inboard end of the first arm being hingably connected to the center hull, a first threaded bolt perpendicularly connected near the inboard end of the first arm, the first threaded bolt being oriented outwardly from the center hull, a first opening formed near the outboard end of the first arm, the outboard end of the second arm being hingably connected to the top surface of the respective outboard hull, a second threaded bolt perpendicularly connected near the outboard end of the second arm, the second threaded bolt being oriented outwardly from the respective outboard hull, a second opening formed near the outboard end of the second arm, the inboard end of the second arm being hingably connected to approximately the midpoint of the first arm, whereby when the respective outboard hulls are moved outwardly from the center hull, the first arm of the bridge beam is disposed in the longitudinal plane of the center hull and the second threaded bolt on the second arm is received in the first opening in the outboard end of the first arm, a first cooperating threaded means being removably connected to the second threaded bolt to secure the outboard hull outwardly from the center hull in a seaworthy position, and whereby when the outboard hulls are moved adjacent to the center hull, the inboard end of the first arm hingably folding upright at an angle of approximately 90.degree. with respect to the longitudinal plane of the center hull, the second arm, hingably folding at the inboard end and the outboard end such that the second arm is substantially parallel to the first arm, the first threaded bolt being received in the second opening in the outboard end of the second arm, a second cooperating threaded means being removably connected to the first threaded bolt to secure the outboard hull adjacent to the center hull, the outboard hull being in a substantially vertical position so that the sailing craft may be stored, transported and power sailed with an outboard motor.

A sailing craft having a center hull, the hull having a deck, a port side, a starboard side, a bow and a stern in a longitudinal plane, an amidships between the bow and the stern, the craft comprising:

• an outboard port hull and an outboard starboard hull, each hull being a top surface, the top surfaces of said hulls being adjustably hingably connected to the center hull by respective port and starboard bridge beams, and means for moving and securing said outboard hulls adjacent to the respective port and starboard sides of the center hull for storage and transport wherein said hulls are in a substantially vertical and seaworthy position and means for moving and securing said outboard hulls outwardly from the center hull for sailing.
• a forward port bridge beam and a forward starboard bridge beam said bridge beam being diametrically opposed to another, an aft port bridge beam and an aft starboard bridge beam, said bridge beams being diametrically opposed to one another,
• a forward arched member having a port end connected to the deck on the port side of the center hull adjacent to the forward port bridge beam, a starboard end of the forward arched member connected to the deck on the starboard side of the center hull adjacent to the forward starboard bridge beam, forward upper cable bracings connected from the forward arched member to the respective forward port and starboard bridge beams, forward lower cable bracings connected from the center hull to the respective forward port and starboard bridge beams;
• an aft arched member having a port end connected to the deck on the port side of the center hull adjacent to the aft port bridge beam, a starboard end of the aft arched member connected to the deck on the starboard side of the center hull adjacent to the aft starboard bridge beam, aft upper cable bracings connected from the aft arched member to the respective aft port and starboard bridge beams, aft lower cable bracings connected from the center hull to the respective aft port and starboard bridge beams.

A sailing craft having a center hull, the hull having a deck, a port side, a starboard side, a bow and a stern in a longitudinal plane, an amidships between the bow and the stern, a top surface and a keel with a vertical plane therebetween, the craft comprising:

• an outboard port hull and an outboard starboard hull, each hull having a respective top surface and a respective keel with a respective vertical plane therebetween said outboard hulls being adjustably connected to the center hull by respective port and starboard bridge beams, means for moving and securing said outboard hulls adjacent to the center hull for storage and transport wherein the vertical planes of said outboard hulls are substantially parallel and in a seaworthy position and means for moving and securing said outboard hulls outwardly from the center hull for sailing;
• an inverted substantially U-shaped mast having a port leg and a starboard leg, said legs having a juncture at an arcuate top, whereby when the port hull and the starboard hull are moved to the respective outward sailing position, the port leg of the mast may be removably connected to the port hull and the starboard leg of the mast may be removably connected to the starboard hull such that the mast is in an upright position, the legs of the mast forming an acute angle therebetween such that the vertical planes of the port hull and the starboard hull are each disposed at an acute angle with respect to the vertical plane of the center hull;
• and when the port hull and the starboard hull are moved to the respective storage position, the legs of the mast are disconnected from the outboard hulls, the mast is stepped to a storage position in the longitudinal plane of the center hull, the port leg and the starboard leg of the mast being substantially parallel to one another.

A sailing craft having a center hull, the hull having a deck, a port side, a starboard side, a bow and a stern in a longitudinal plane, an amidships between the bow and the stern, the craft comprising:

• an outboard port hull and an outboard starboard hull, said hulls being adjustably connected to the center hull by respective port and starboard bridge beams;
• an inverted substantially U-shaped mast having a port leg and a starboard leg, said legs having a juncture at an arcuate top and when the port hull and the starboard hull are disposed outwardly for sailing, the port leg being connected to the port hull and the starboard leg being connected to the starboard hull;
• a sail shape boom having a first end and a second end, the sail shape boom being rotatable connected to the center hull and being rotatable through 360.degree. about a rotary axis in a plane parallel to the longitudinal plane of the center hull, the sail shape boom avoiding contact with the legs of the mast;
• a sail having at least two edges, a head, a center portion and a foot, the sail being symmetrical about a vertical axis, the head of the sail being releasably attached to the top of the mast, the foot of the sail being connected to the sail shape boom, two wishbone spars being connected about the sail, a lower wishbone spar being disposed in approximately the center portion of the sail and an upper wishbone spar being disposed near the head of the sail, the wishbone spars and the edges of the sail avoiding contact with the mast, a hem formed on each edge of the sail, a respective sail line enclosed within each hem, each respective sail line being attached near the head of the sail and extending downwardly within each hem to near the foot of the sail, each respective sail line exiting from the respective hem and forming two separate support lines, each respective support line passing through a respective pulley, two pulleys being attached to the first end of the sail shape boom and two pulleys being attached to the second end of the sail shape boom, each support line being angled upwardly and inwardly over the sail and being slidably connected to the lower wishbone spar, each support line further being angled upwardly and outwardly and being connected to the upper wishbone spar, whereby the respective sail lines and support lines reduce twisting and produce even tension throughout the sail.

A sailing craft having a center hull, the hull having a deck, a port side, a starboard side, a bow and a stern in a longitudinal plane, an amidships between the bow and the stern, the craft comprising:

• an outboard port hull and an outboard starboard hull, said hulls being connected to the center hull by respective port and starboard bridge beams;
• a mast having a port leg and a starboard leg, said legs having a juncture at a top above the center hull, the port leg being connected to the port hull and the starboard leg being connected to the starboard hull;
• a primary boom having a first end, an opposite second end and a midpoint, the midpoint of the primary boom being rotatably mounted approximately above the amidships of the center hull and between the port leg and the starboard leg of the mast, wherein the primary boom may rotate through 360.degree. about a rotary axis in a plane parallel to the longitudinal plane of the center hull;
• a pair of secondary articulating booms, one pivotally connected to the first end of the primary boom and the other pivotally connected to the second end of the primary boom;
• a sail shape boom having a first end and an opposite second end, the first end of the sail shape boom slidably connected to the one articulating boom and the second end of the sail shape boom slidably connected to the other articulating boom, said sail shape boom being disposed in a longitudinal plane above the longitudinal plane of the primary boom, whereby, when the primary boom rotates through 360.degree., the sail shape boom also rotates through 360.degree., the ends of the sail shape boom avoiding contact with the mast;
• a sail having at least two edges, a head and a foot, the head of the sail being releasably attached to the top of the mast and the foot of the sail being attached to the sail shape boom such that the sail may rotate through 360.degree. avoiding contact with the mast.