An anchor winch system includes an end effector, a guide channel, a winch, a cable and an anchor. The anchor winch system enables a user to deploy an anchor that is stored within the C or Z channels of a pontoon or tritoon boat. The end effector is mounted onto an end of a boat crossmember. The end effector is a holding apparatus that retains the anchor in a stowed position when not deployed. The guide channel traverses through the boat crossmember, and the cable is threaded through the guide channel. The winch is tethered to one end of the cable and the anchor is tethered to the opposite end. Thus, the winch is able to deploy or retract the anchor by paying out or reeling in the cable.

An anchor winch system includes an end effector, a guide channel, a winch, a cable and an anchor. The anchor winch system enables a user to deploy an anchor that is stored within the C or Z channels of a pontoon or tritoon boat. The end effector is mounted onto an end of a boat crossmember. The end effector is a holding apparatus that retains the anchor in a stowed position when not deployed. The guide channel traverses through the boat crossmember, and the cable is threaded through the guide channel. The winch is tethered to one end of the cable and the anchor is tethered to the opposite end. Thus, the winch is able to deploy or retract the anchor by paying out or reeling in the cable.

One or more propulsion arrangements for water vessels, and in particular propulsion arrangements that include flanking rudders with bidirectional high-lift sections to improve performance, particularly in the reverse direction. The flanking rudders are positioned adjacent a propulsor for directing a slipstream flow when the vessel is travelling in the reverse direction. Each flanking rudder has an elongated profile extending from a first edge to a second edge, and in which each elongated profile has a first bulb portion, a convex middle portion, and a second bulb portion.

One or more propulsion arrangements for water vessels, and in particular propulsion arrangements that include flanking rudders with bidirectional high-lift sections to improve performance, particularly in the reverse direction. The flanking rudders are positioned adjacent a propulsor for directing a slipstream flow when the vessel is travelling in the reverse direction. Each flanking rudder has an elongated profile extending from a first edge to a second edge, and in which each elongated profile has a first bulb portion, a convex middle portion, and a second bulb portion.

The men's eight according to the invention has an elongated hull that ends in a pointed bow and a pointed stern. Given a total weight of 938 kg, the waterline is 17,211 mm±5%, preferably ±3% and most preferably ±2%. Given division into 15 segments of equal length and in the case of a total weight of 938 kg, particular values are also presented in table form for the respective cross-sectional area below the waterline WL, the respective circumference below the waterline WL, the respective width at the waterline WL, and the respective width ratio based on the middle segment 7, each having a tolerance of ±5%, preferably ±3% and most preferably ±2%. The women's eight according to the invention is designed with similar lines for a total weight of 858 kg.

The men's eight according to the invention has an elongated hull that ends in a pointed bow and a pointed stern. Given a total weight of 938 kg, the waterline is 17,211 mm±5%, preferably ±3% and most preferably ±2%. Given division into 15 segments of equal length and in the case of a total weight of 938 kg, particular values are also presented in table form for the respective cross-sectional area below the waterline WL, the respective circumference below the waterline WL, the respective width at the waterline WL, and the respective width ratio based on the middle segment 7, each having a tolerance of ±5%, preferably ±3% and most preferably ±2%. The women's eight according to the invention is designed with similar lines for a total weight of 858 kg.

A marine vessel or watercraft may be provided with an aft extension that, in one configuration of the watercraft, alters the wake of the watercraft, for example by reducing the height of the wake, and which may include a sealable opening to provide crew or payload access into or out of the watercraft at a location (e.g., aft of the transom) that may be difficult for an observer to perceive. The aft extension may be positioned above the watercraft's waterline when the watercraft is in another configuration such that it does not contact with the water to reduce adverse impact on performance characteristics, such as drag, of the hull when the watercraft is in that configuration. The watercraft may transition between the two configuration by selectively varying the displacement of the watercraft or by articulating of the aft extension.

A marine vessel or watercraft may be provided with an aft extension that, in one configuration of the watercraft, alters the wake of the watercraft, for example by reducing the height of the wake, and which may include a sealable opening to provide crew or payload access into or out of the watercraft at a location (e.g., aft of the transom) that may be difficult for an observer to perceive. The aft extension may be positioned above the watercraft's waterline when the watercraft is in another configuration such that it does not contact with the water to reduce adverse impact on performance characteristics, such as drag, of the hull when the watercraft is in that configuration. The watercraft may transition between the two configuration by selectively varying the displacement of the watercraft or by articulating of the aft extension.

A system for recharging power storage devices on a watercraft is disclosed herein. The system for recharging power storage devices on a watercraft includes a shell, at least one linear-channel fixedly mounted inside the shell, a turbine having at least one rotor and at least one shaft connected to the rotor, and a generator. The system for recharging power storage devices on a watercraft is useful for converting the rotational energy provided by the water flowing past the turbine rotor into electrical energy to charge a power storage device on a watercraft.

A hull is for a vessel and includes an elongated body rotatably connected to the vessel and a first end portion and a second end portion. The longitudinal axis of the elongated body substantially coincides with the longitudinal axis of the vessel and the elongated body is formed with a helical shape at least in a portion. The helical portion of the elongated body is provided with a star-shaped cross section.