A system for attaching accessories to a boat that is moveable between a first, stored configuration and a second, expanded configuration. The system includes a boat, a first leg frame member, a second leg frame member, an attachment device, a first support member, and a second support member. The first leg frame member has a proximal first end attached to the boat such that a portion of the first leg frame member is pivotable relative to the boat. The second leg frame member has a proximal second end attached to the boat such that a portion of the second leg frame member is pivotable relative to the boat. The attachment device is mounted to the first leg frame member and the second leg frame member. The first support member is attached to the first leg frame member and the second support member is attached to the second leg frame member.

A system for attaching accessories to a boat that is moveable between a first, stored configuration and a second, expanded configuration. The system includes a boat, a first leg frame member, a second leg frame member, an attachment device, a first support member, and a second support member. The first leg frame member has a proximal first end attached to the boat such that a portion of the first leg frame member is pivotable relative to the boat. The second leg frame member has a proximal second end attached to the boat such that a portion of the second leg frame member is pivotable relative to the boat. The attachment device is mounted to the first leg frame member and the second leg frame member. The first support member is attached to the first leg frame member and the second support member is attached to the second leg frame member.

A dual-phase refrigeration system for chilled storage containers (CSC) aboard boats maintains cold temperatures in the CSC by chilling the airspace in the upper portion of the CSC. A cooling liquid is circulated through coils installed on an interior sidewall about an upper margin of the CSC. The cooling liquid chills the air in the upper portion of the CSC which creates a thermodynamic airflow within the CSC which aids in cooling. The temperature of the cooling liquid is maintained by a heat exchange with a Non-Ozone Depleting Hydrofluorocarbon (NODHFC) refrigerant which, in turn, is cooled by a heat exchange with circulating water sourced from the body of water supporting the boat. If ice is added to the CSC, the cooling liquid in the coils reduces the air temperature differential across air/ice interface and maintains the quality of the ice.

A watercraft with a hull assembly and a mat storage system coupled to the hull assembly. The hull assembly may have a mat compartment with the mat storage system configured to move the mat between a stored position, in which at least a portion of the mat is positioned in the mat compartment, and a deployed position. The mat compartment may be positioned beneath at least a portion of a floor of the hull assembly. The hull assembly may have a cover positioned adjacent the mat compartment and moveable between a closed position, in which it covers at least a portion of the mat compartment, and an open position. The mat storage system may have a motor that is configured to move the mat to a stored position.

A watercraft with a hull assembly and a mat storage system coupled to the hull assembly. The hull assembly may have a mat compartment with the mat storage system configured to move the mat between a stored position, in which at least a portion of the mat is positioned in the mat compartment, and a deployed position. The mat compartment may be positioned beneath at least a portion of a floor of the hull assembly. The hull assembly may have a cover positioned adjacent the mat compartment and moveable between a closed position, in which it covers at least a portion of the mat compartment, and an open position. The mat storage system may have a motor that is configured to move the mat to a stored position.

A dual-phase refrigeration system for chilled storage containers (CSC) aboard boats maintains cold temperatures in the CSC by chilling the airspace in the upper portion of the CSC. A cooling liquid is circulated through coils installed on an interior sidewall about an upper margin of the CSC. The cooling liquid chills the air in the upper portion of the CSC which creates a thermodynamic airflow within the CSC which aids in cooling. The temperature of the cooling liquid is maintained by a heat exchange with a Non-Ozone Depleting Hydrofluorocarbon (NODHFC) refrigerant which, in turn, is cooled by a heat exchange with circulating water sourced from the body of water supporting the boat. If ice is added to the CSC, the cooling liquid in the coils reduces the air temperature.

A hull-mounted installation conversion method in which some or all of first-use units placed on a hull and constituting a first-use installation are removed from the hull, and then second-use units are placed on the hull to construct a second-use installation. For example, the first-use units are medical units, and the first-use installation is a medical installation. Alternatively, the second-use units are medical units, and the second-use installation is a medical installation.

A system includes a housing and a swim up bar configured to be mounted on a boat. The swim up bar is movable into or out from the housing. In a deployed position, the swim up bar is extended from a bow of the boat. In a storage position, the swim up bar is contained within the housing.

A system includes a housing and a swim up bar configured to be mounted on a boat. The swim up bar is movable into or out from the housing. In a deployed position, the swim up bar is extended from a bow of the boat. In a storage position, the swim up bar is contained within the housing.

A buoyant structure having a hull, a main deck, an upper cylindrical side section extending downwardly from the main deck, an upper frustoconical side section, a cylindrical neck, a lower ellipsoidal section that extends from the cylindrical neck, an ellipsoidal keel and a fin-shaped appendage secured to a lower and an outer portion of the exterior of the ellipsoid keel. The upper frustoconical side section located below the upper cylindrical side section and maintained to be above a water line for a transport depth and partially below the water line for an operational depth of the buoyant structure.