A fiberglass pontoon boat, having raised and integrated fiberglass side rails, a flat floor, and a side entry level with the flat floor. Integrated seats are molded in fiberglass. The hull and deck join together by flexing the hull to compensate for opposing draft angles of the hull and deck at the side entry. The deck has a floor and at least one other interior component, and terminates in a deck trim flange. The hull has at least two hollow pontoons and at least two side rails that extend from an outer edge of the pontoons, and the hull terminates in a hull trim flange. When assembled, the hull trim flange operatively engages beneath the deck trim flange to form a unified pontoon boat having a space between the deck and hull and wherein the side rails are integrated as structural parts of the interior component.

Embodiments of the present invention provide systems and methods for using nonwoven materials for evacuation slides, life rafts, life vests, and other life-saving inflatable devices. The nonwoven materials have a substrate layer with continuous filaments formed in various directions.

Embodiments of the present disclosure relate generally to nonwoven substrate materials that find particular use in connection with evacuation slides, evacuation slide/rafts, life rafts, life preservers/vests, or other emergency flotation devices. Such devices are typically formed from woven substrates, but the present inventors have determined that using nonwoven substrates in connection with such devices can provide improved benefits. The nonwoven substrates further have a gas barrier formed thereon by using layer-by-layer (LBL) nanocoating technology.

A method is provided for manufacturing a rotor body of a Magnus-type rotor. The method includes providing a plurality of arcuate panels, wherein each of the panels has an arc-length less than a predetermined circumference of the rotor body. The method further includes positioning at least three such arcuate panels in mutual edge-wise abutment to form circumferentially a hollow cylindrical loop, wherein longitudinal edges of adjacent panels are mutually attached to each other. The method further optionally includes co-axially stacking one above another at least two loops of substantially similar diameter. The method further includes connecting edges of adjacent loops to define the rotor body of a predetermined height.

Embodiments of the present invention provide systems and methods for using nonwoven materials for evacuation slides, life rafts, life vests, and other life-saving inflatable devices. The nonwoven materials have a substrate layer with continuous filaments formed in various directions.

A method for repairing a crack in ships or other structures that includes adhesively applying fiber reinforced metal matrix composite tape across the crack of the structure to reduce propagation of the crack and provide additional structural stability until the crack can be permanently repaired.

A method of manufacturing a boat hull comprising: forming a foam mold of a predetermined shape and size from one or more pieces of foam; cutting, into the foam, at least one C-channel running in a longitudinal or a lateral direction within the foam; and coating the foam with at least one layer of reinforcing fiber and resin.

A wind turbine platform configured to float in a body of water and support a wind turbine thereon includes a buoyant hull platform. A wind turbine tower is centrally mounted on the hull platform and a wind turbine is mounted to the wind turbine tower. An anchor is connected to the hull platform and to the seabed, and a weight-adjustable mass is suspended from the hull platform.

A method of manufacturing a submersible vessel, the method comprising: forming a foam mold of a predetermined shape and size from at least a first piece of foam having a first density and at least a second piece of foam having a second density; cutting at least one channel into the foam running in a longitudinal direction or a lateral direction within the foam; and coating the foam with at least one layer of reinforcing fiber and resin.

A method of manufacturing a sail body (3) for forming part of a wind assisted propulsion device (4), the method comprising the steps of: laying a first fabric (14), formed from first fibres, onto a mould (16) defining the shape of a part (2) of the sail body (3); laying a plurality of strips (22), formed from second fibres, onto a surface of the first fabric (14) such that at least some of the second fibres extend longitudinally along the sail body (3).