Abstract: The present invention is a contoured boat windshield with a top edge parallel to a bottom edge; a right and left side connecting the top and bottom edges; and at least one concave pane with a curvature that describes between 45 and 90 degrees of a circle and that is disposed between the top and bottom edges. The present invention is also a boat including a contoured boat windshield of the present invention and attachment means for attaching the windshield to the boat.

Abstract: A gyroscopic roll stabilizer for a boat includes a flywheel shaft having a first end and an opposite second end. The flywheel shaft has first and second open-ended cavities formed on opposing ends. A first uneven seal encloses the first cavity, and a second uneven seal encloses the second cavity. The first and second uneven seals are both configured to provide asymmetric sealing such that greater resistance is provided against flow in a primary sealing direction, from a first side toward a second side, than in a secondary sealing direction, from the second side toward the first side. The first side of the second seal faces inward toward the second cavity, and the second side of the first seal faces inward toward the first cavity. The first and second seals are functionally inverted relative to each other. Related methods are also disclosed.

Abstract: A gyro stabilizer includes a rotor arranged to rotate about a spin axis, and a stator, wherein the rotor and the stator include rotor and stator assemblies, respectively. The rotor assembly is arranged radially outside the stator assembly with respect to the spin axis, wherein the rotor and/or stator assemblies include magnets with magnetic axis in the direction of the spin axis.

Abstract: An anti-roll stabilizer device for boats includes a container adapted to be mounted on a suspension so as to oscillate around a first axis; a mass rotatably supported inside the container so as to form a rotor that rotates around a second axis transverse to the first axis; and a rotor cooling system having a hollow shaft arranged along the second axis, a first and a second cooling chamber sealed from the container of the rotor and from the outside, arranged at the ends of the hollow shaft and communicating through the hollow shaft, the first chamber having an inlet and the second chamber an outlet that are connected to a forced circulation circuit of the cooling fluid so that the cooling fluid can circulate from the first chamber to the second chamber through the hollow shaft and from the second chamber to the first chamber through the circulation circuit.

Abstract: A jet pump assembly includes a marine engine, a jet drive and a shield adapted to be secured to a transom of a watercraft. The shield has arms to which the marine engine is secured and legs to which the jet drive is secured, the arms and legs extending in opposite directions. The shield has a flange adapted to be secured to the transom of the watercraft. The shield covers an opening in the transom through which the jet pump assembly is passed during assembly. A gasket between the shield and transom prevents water from entering the watercraft.

Abstract: A gyroscopic roll stabilizer includes an enclosure, a flywheel assembly, and a motor. The enclosure is mounted to a gimbal for rotation about a gimbal axis and configured to maintain a below-ambient pressure. The flywheel assembly is rotatably mounted inside the enclosure for rotation about a flywheel axis. The flywheel assembly includes a flywheel and flywheel shaft. The flywheel shaft has a first end and an opposite second end; a first cavity formed in the first end and facing away from the second end; and a second cavity formed in the second end and facing away from the first end. The flywheel shaft has a longitudinal passage connecting the first cavity and the second cavity. This longitudinal passage may be used for inspection of one of the cavities and/or an associated seal, from the direction of the other cavity. Related methods are also disclosed.

Abstract: A system for the recovery of a surface marine craft by a carrier ship includes a lifting device with which the carrier ship is intended to be equipped and which includes a lifting unit of the davit type, equipped with a lifting cable including, at one end, a connection interface, a pole bearing a guide cable, an anchor connected to one end of the guide cable, the connection interface for the lifting cable being coupled removably to the anchor, and a hauling cable. The system also includes a receiving device with which the marine craft is intended to be equipped, the receiving device including a forward module.

Abstract: A method of automatically moving, by an automatic location placement system, a marine vessel includes receiving, by a central processing unit, from a vision ranging photography system, at least one optical feed including data providing a mapping of an environment surrounding a marine vessel. The method includes displaying, by the central processing unit, on a touch screen monitor, the mapping of the environment. The method includes receiving, by the central processing unit, from the touch screen monitor, target location data. The method includes directing, by the central processing unit, at least one element of a propulsion system of the marine vessel, to move the marine vessel to the targeted location, using the mapping.

Abstract: A retractable davit assembly includes a davit arm that retracts into a davit arm channel formed within the internal volume of a deck of the superstructure of a yacht or other vessel. An outer end of the davit arm includes a fairing matching a profile of the surrounding outer edge of the deck, such that that davit arm is concealed when retracted.

Abstract: A slide system includes a component assembly, a track system, a floor panel, and a below-deck cavity. The track system is coupled at least indirectly to the component assembly for guiding movement of the component assembly along a path. The floor panel includes an upper surface. The below-deck cavity is disposed below the floor panel. The component assembly is located substantially above the floor panel. The track system is located within the below deck cavity and below the upper surface.

Abstract: A wind-propelled vessel is described herein. The vessel includes at least one hull and at least one set of paired masts. Each paired mast of the at least one set of paired masts has a first mast located to one side of the vessel and a second mast located on the opposite side of the vessel. Also, each mast of the at least one set of paired masts has a spar located at or near the top of the mast. Moreover, each one of the spar located at or near the top of the mast extends inwards towards a center plane of the vessel, and an inward end of the spar is connected by a connector to another inward end of another one of the each one of the spar located at or near the top of the mast.

Abstract: A marine outboard engine including an engine unit; a drive unit operatively connected to the engine unit; an engine unit housing for supporting and covering the engine unit, the engine unit housing having a top surface; and one or more bumpers connected to the engine unit housing. The bumper projects above the top surface of the engine unit housing; or rearward of an upper rear end of the engine unit housing; or both above the top surface of the engine unit housing and rearward of an upper rear end of the engine unit housing. When the marine outboard engine is located under a boat hatch is in a closed position and the marine outboard engine is pivoted in at least one portion of a tilt range, the bumper is adapted for abutting a bottom surface of the hatch.

Abstract: A method of automatically moving, by an automatic location placement system, a marine vessel includes receiving, by a central processing unit, from a vision ranging photography system, at least one optical feed including data providing a mapping of an environment surrounding a marine vessel. The method includes displaying, by the central processing unit, on a touch screen monitor, the mapping of the environment. The method includes receiving, by the central processing unit, from the touch screen monitor, target location data. The method includes directing, by the central processing unit, at least one element of a propulsion system of the marine vessel, to move the marine vessel to the targeted location, using the mapping.

Abstract: Buoy apparatus and buoy control system for identifying an underwater object, and method for identifying an underwater object are disclosed. A buoy apparatus for use underwater, comprises a buoy securely connected to a first end of a rope; a spool structure securely connected to a second end of the rope; a retractable head for engaging the spool structure; and a spool control device for actuating retraction of the retractable head, wherein in response to an instruction from the spool control device, the retractable head disengages the spool structure, and the spool structure releases the rope when the buoy raises toward a surface of water.

Abstract: A sail for the propulsion of elements of transport, which comprises a sheet-like body made of flexible material which is connected, along one of its edges, to a supporting mast, connected to an element of transport. At least one stiffening rib is associated with the sheet-like body and is accommodated in a respective pocket which is formed in the sheet-like body and extends for at least one portion of the sheet-like body comprised between the supporting mast and the edge of the sheet-like body that is opposite to the one connected to the supporting mast; the rib has, or can assume on command, a substantially arc-like shape adapted to generate lift. Elements are further provided for varying the orientation of a concave part of the rib with respect to the supporting mast.

Abstract: A hull cleaning system is disclosed that comprises a below-waterline hull cleaning head arranged to clean an underwater portion of a hull in-situ, a location determining system arranged to produce location information indicative of the location of the hull cleaning head relative to the hull, and a hub facility remotely located relative to the hull cleaning head. The hub facility is arranged to store the location information, and the system is arranged to send the location information to the hub facility for storage at the hub facility so as to thereby provide a record at the hub facility of clean portions of the hull that have been cleaned by the hull cleaning head and fouled portions of the hull that have not yet been cleaned by the hull cleaning head. The system is also arranged to provide on-line access to the location information stored at the hub facility so as to thereby enable cleaning to continue at a subsequent time using the stored location information.

Abstract: The invention relates to a ship, comprising: at least one casing that delimits a cavity extending vertically across the ship's decks; at least one exhaust flue that is installed inside said casing and comprises a plurality of concentrated mass components and a plurality of components with mass distributed in length; a plurality of structures that support the plurality of said components inside the casing. Said support structures comprise: a plurality of main platforms, which define a main support base inside said cavity and is connected to walls of the casing at a ship deck by means of the interposition of main elastic suspensions; and a plurality of secondary platforms, which are directly or indirectly supported only by one of said main platforms and defines a secondary support base arranged at a different height with respect to the main support base that is defined by the corresponding main platform.

Abstract: An anchor system including an anchor having a body member and a first arm pivotally coupled to the body member. The first arm is movable between a closed position wherein the first arm is positioned adjacent to the body member and an open position wherein at least part of the first arm is spaced away from the body member. The system further includes a second arm pivotally coupled to the body member and movable between a closed position wherein the second arm is positioned adjacent to the body member and an open position wherein at least part of the second arm is spaced away from the body member. At least one of the first or second arms has a cavity that is exposed when the at least one of the first or second arms is in the open position. The at least one of the first or second arms includes a protrusion extending therefrom.

Abstract: A linear drive system adapted for repetitive driving using a linear motor. The drive system may be used to power pumping hydrofoils which drive a boat or ship. Linkages are used to maintain the driven portion in linear motion. A coupled dual drive system in which two driven portions are coupled such that their coupled motions travel at the same velocity in opposed directions. The coupled linear drive system which may be used as a mechanical power source for drive systems used in transportation and industry. A boat with dual pumping hydrofoils adapted for propel a boat using the hydrofoils for both lift and propulsion.

Abstract: The present disclosure features inflatable kayaks that have a non-planar hull bottom surface. The kayaks may include an inflatable, tubular body having a bow, a stern and a midsection, wherein opposed side tubes of the midsection define an open central seating area having a predetermined width when the tubular body is inflated; and a hull bottom fabric joined to a lower surface of the body outside of a periphery of the seating area, the hull bottom fabric having a width that is greater than the width of the central seating area such that the hull bottom fabric is not tensioned between the side tubes, and the hull bottom fabric being joined to the side tubes outboard of a vertical center line of the side tubes.