A deep-drawn, marine hull having a sandwich structure with a cellulose-based core and watercraft utilizing same are provided. The hull includes an outer skin of a fiber-based thermoplastic and having a waterproof outer surface, a first sheet of thermoplastic adhesive, an inner skin of a fiber-reinforced thermoplastic material and having a compartment-defining outer surface, a second sheet of thermoplastic adhesive and a shock absorbing, cellular core of a cellulose-based material and positioned between the skins The skins are bonded to the core by the first and second sheets and by press molding. Cells of the cellular core absorb energy of an impact at the outer surface of the outer skin by deformably crushing. Air trapped within cells which are not completely crushed or punctured by the impact provide the hull with buoyancy to allow the hull to float at the surface of a body of water.

Disclosed are a device and a method for bonding an auxiliary secondary barrier for an LNG storage tank. The device for bonding an auxiliary secondary barrier includes: a frame; a driving unit, a portion of which is arranged in the frame, and which enables the frame to move on an upper heat insulation board corresponding to an exposed portion of a main secondary barrier; an adhesive applying unit arranged in the frame to apply an adhesive on the exposed portion; an auxiliary secondary barrier supply unit arranged in the frame to supply an auxiliary secondary barrier on the adhesive applied on the exposed portion; and one or more heating unit arranged in the frame to heat at least one of the exposed portion to which the adhesive contained in the adhesive applying unit is to be applied and the auxiliary secondary barrier to be supplied on the applied adhesive.

An approach for assembling a maritime vehicle includes forming a keel panel from a single sheet of metal, forming a first side panel from a single sheet of metal, forming a second side panel from a single sheet of metal, and forming a lip member. The first side panel and the second side panel are temporarily coupled with the lip member. The keel panel is secured with the first side panel and the second side panel using a cold joining process.

An approach for assembling a maritime vehicle includes forming a keel panel from a single sheet of metal, forming a first side panel from a single sheet of metal, forming a second side panel from a single sheet of metal, and forming a lip member. The first side panel and the second side panel are temporarily coupled with the lip member. The keel panel is secured with the first side panel and the second side panel using a cold joining process.

A windshield system securable on a boat deck includes a bottom trim securable directly onto the boat deck, a top trim, and a vertical trim connected between the bottom trim and the top trim. A glass panel is secured to the bottom trim, the top trim and the vertical trim solely with an adhesive. The trim profiles significantly reduce processing and assembly work. The system is also intended to be fully bonded together without the use of mechanical fasteners.

A windshield system securable on a boat deck includes a bottom trim securable directly onto the boat deck, a top trim, and a vertical trim connected between the bottom trim and the top trim. A glass panel is secured to the bottom trim, the top trim and the vertical trim solely with an adhesive. The trim profiles significantly reduce processing and assembly work. The system is also intended to be fully bonded together without the use of mechanical fasteners.