The present invention relates to a submerged-floating type water house. The house comprises: a first lower side part and a second lower side part formed symmetrically with respect to each other; a first upper side part and a second upper side part formed symmetrically and extending from the first lower side part and the second lower side part; and a front part and a rear part formed in front of and in back of the first lower side part and second lower side part and the first upper side part and second upper side part, thereby forming a rhombic-shaped body and floating in water.

Disclosed is a system for the recovery of a surface marine craft by a carrier ship. The system included a lifting device with which the carrier ship is intended to be equipped and which included a lifting unit of the davit type, equipped with a lifting cable including, at one end, a connection interface, a pole bearing a guide cable, an anchor connected to one end of the guide cable, the connection interface for the lifting cable being coupled removably to the anchor, and a hauling cable. The system also included a receiving device with which the marine craft is intended to be equipped, the receiving device including a forward module.

A hybrid personal watercraft combines features of pontoon boats and deck boats, in a cost-effective and versatile package. The watercraft includes port and starboard sponsons which combine a pair of outboard flotation cavities. A space below the deck and above the hull bottom creates at least one, and potentially up to three additional flotation cavities, which may also be used as storage areas accessible by an access door in the bow of the watercraft and/or a set of hatches in the deck. The watercraft may be efficiently produced assembled from polymer materials, such as thermoplastic polyolefin (TPO).

A pontoon boat includes a deck supported by one or more pontoons. A passenger barrier extends upwardly from the deck. The passenger barrier includes a fixed portion and a movable portion. The passenger barrier includes an opaque panel and a one-way transparent panel.

Described herein are examples of a watercraft with a hull defining a hull cavity. A canopy may be removably coupled to the hull via a canopy interface. The canopy interface includes a first portion fixed to the hull and a second portion fixed to the canopy. The first portion defines an opening through the hull into the hull cavity. The second portion is configured to be removably coupled to the first portion to enclose and seal the opening whereby the canopy interface is configured to interchangeably couple any one of a plurality of different canopies including the canopy to the hull. Each canopy of the plurality of different canopies may include a different configuration that provides a different access opening into the hull cavity or reconfigures the hull with a different outer profile.

Described herein are examples of a watercraft with a hull defining a hull cavity. A canopy may be removably coupled to the hull via a canopy interface. The canopy interface includes a first portion fixed to the hull and a second portion fixed to the canopy. The first portion defines an opening through the hull into the hull cavity. The second portion is configured to be removably coupled to the first portion to enclose and seal the opening whereby the canopy interface is configured to interchangeably couple any one of a plurality of different canopies including the canopy to the hull. Each canopy of the plurality of different canopies may include a different configuration that provides a different access opening into the hull cavity or reconfigures the hull with a different outer profile.

A closing device configured to close an outer shell opening of a surface ship, including several substantially vertically mounted shutter lamellas and a drive device by means of which the shutter lamellas can be actuated such that they move between a closed position and an open position.

A closing device configured to close an outer shell opening of a surface ship, including several substantially vertically mounted shutter lamellas and a drive device by means of which the shutter lamellas can be actuated such that they move between a closed position and an open position.

Described herein are examples of a watercraft with a hull defining a hull cavity. A canopy may be removably coupled to the hull via a canopy interface. The canopy interface includes a first portion fixed to the hull and a second portion fixed to the canopy. The first portion defines an opening through the hull into the hull cavity. The second portion is configured to be removably coupled to the first portion to enclose and seal the opening whereby the canopy interface is configured to interchangeably couple any one of a plurality of different canopies including the canopy to the hull. Each canopy of the plurality of different canopies may include a different configuration that provides a different access opening into the hull cavity or reconfigures the hull with a different outer profile.

Sun heats dark continents more than reflective oceans. Air moves onshore from high pressure to low. Creating wind: powering weather and storms—“hurricane-in-a-box-on-water” principles producing electricity in a marine vessel, providing Green Technology for Marine Transportation. Captured and recovered heat, offset by loss of heat, creates differential pressure conditions across multiple rotary engines. Night and day, a working fluid moves from high pressure to low; powering alternators, batteries, domestics, and in-hull electric drive trains, in a unique, lightweight exoskeleton dome shell design vessel. Disclosed vessel design advantages include: high energy collection and living space to vessel length ratio; high strength to weight ratio; high carrying capacity, downwind sailing while producing electricity; modular fabrication and shipping; and sustained hull speed in a vessel harvesting energy from the environment. The longer the vessel: the more it carries: the greater the hull speed: the faster it goes.