Marine vessels, including combatant (naval) vessels are produced inexpensively without requiring the use of as many skilled personnel as is conventional. The vessel produced has a high strength metal truss structure (both above and below the water line) capable of carrying major hull loads. A number of curved or doubly curved composite (e. g. GRP) panels produced by vacuum assisted resin transfer molding are fastened by bolts, marine adhesives, and/or rivets to the below water line portions of the truss structure where necessary to handle slamming loads and to reduce water resistance and wake. Substantially flat composite pultruded panels are fastened to the truss structure both above the water line, and below the water line where the resistance to slamming loads and reduction of water resistance and wake are not critical. Necessary equipment is installed within the open truss volume before the above-water-line panels are fully installed.

A pontoon boat includes port and starboard pontoons and cross members connecting the pontoons. A shock absorber may be installed at each point of connection of the pontoons to the cross members. A cross member may be embodied as a double-webbed beam having first and second parallel flanges and first and second webs disposed between and connected to the flanges. Each pontoon may include a two-stage lifting strake having a first surface and a second surface inclined from the first surface.

A pontoon boat includes port and starboard pontoons and cross members connecting the pontoons. A shock absorber may be installed at each point of connection of the pontoons to the cross members. A cross member may be embodied as a double-webbed beam having first and second parallel flanges and first and second webs disposed between and connected to the flanges. Each pontoon may include a two-stage lifting strake having a first surface and a second surface inclined from the first surface.

Marine vessels, including combatant (naval) vessels are produced inexpensively without requiring the use of as many skilled personnel as is conventional. The vessel produced has a high strength metal truss structure (both above and below the water line) capable of carrying major hull loads. A number of curved or doubly curved composite (e. g. GRP) panels produced by vacuum assisted resin transfer molding are fastened by bolts, marine adhesives, and/or rivets to the below water line portions of the truss structure where necessary to handle slamming loads and to reduce water resistance and wake. Substantially flat composite pultruded panels are fastened to the truss structure both above the water line, and below the water line where the resistance to slamming loads and reduction of water resistance and wake are not critical. Necessary equipment is installed within the open truss volume before the above-water-line panels are fully installed.

A structural block is fabricated with necessary components and structure for LNG storage and/or process. The structural block may be an LNG tank with the same configuration as that in an LNG carrier. The structural block may also be a regasification plant or a liquefaction plant to be used for LNG process. An existing vessel, e.g. an LNG carrier, is cut apart to form a forward section and an aft section. The forward section and the aft section are moved away from each other to form a space therebetween. The structural block is then placed into the space and jointed to the forward and aft sections, by welding for example, to form an integrated new vessel. The structural block provides the new vessel with increased LNG storage and transportation capabilities as well as regasification and/or liquefaction process facilities to meet the increased demand for LNG storage, transportation and processing.

A structural block is fabricated with necessary components and structure for LNG storage and/or process. The structural block may be an LNG tank with the same configuration as that in an LNG carrier. The structural block may also be a regasification plant or a liquefaction plant to be used for LNG process. An existing vessel, e.g. an LNG carrier, is cut apart to form a forward section and an aft section. The forward section and the aft section are moved away from each other to form a space therebetween. The structural block is then placed into the space and jointed to the forward and aft sections, by welding for example, to form an integrated new vessel. The structural block provides the new vessel with increased LNG storage and transportation capabilities as well as regasification and/or liquefaction process facilities to meet the increased demand for LNG storage, transportation and processing.

A pontoon boat includes port and starboard pontoons and cross members connecting the pontoons. A shock absorber may be installed at each point of connection of the pontoons to the cross members. A cross member may be embodied as a double-webbed beam having first and second parallel flanges and first and second webs disposed between and connected to the flanges. Each pontoon may include a two-stage lifting strake having a first surface and a second surface inclined from the first surface.

A relatively thick, rubberized adhesive tape is applied to an article to repair, patch, bond, seal, or waterproof the article, to join two or more articles, and/or to modify the appearance and/or physical properties of the article, such as by thermal insulation, shock resistance, vibration resistance, electrical insulation, and the like.

A relatively thick, rubberized adhesive tape is applied to an article to repair, patch, bond, seal, or waterproof the article, to join two or more articles, and/or to modify the appearance and/or physical properties of the article, such as by thermal insulation, shock resistance, vibration resistance, electrical insulation, and the like.

Apparatus and associated methods relate to using an additive (material deposition) process to incrementally form a closed-cell lattice structure formed as a unitary body in the shape of a marine hull cavity, the unit cells of the closed-cell lattice structure are substantially hollow. In an illustrative example, a method may include (a) forming a closed-cell lattice structure through additive manufacture, the hull cavity material may be bonded to an upper manufactured liner and a lower manufactured liner through lamination or mechanical connection. Unit cells of the closed-cell lattice structure may include hollow voids filled with gases. Providing the additive manufactured closed-cell lattice structure with a unitary body and hollow voids to trap gases may further advantageously promote the buoyancy and reduce the degeneration of a marine hull.