The present invention discloses a marine vessel with a monohedral v-shaped hull bow portion blending into catamaran hull sponsons, a center tunnel and individual terminal tunnels on each of the sponsons. This new hull design is capable of high speeds to travel to a desired location, while still providing platform stability and shallow draft of the catamaran shaped aft portion. A removable hull transom diffuser gate and a removable side hull deflector plate may be retracted and/or lowered to reduce the signature of the vessel underway. A retractable cockpit may be included to permit stacking of the marine vessels in order to allow multiple vessels to simultaneously be shipped in a C-130 or C-17 cargo plane to a distant location. This retractable cockpit may include a multi-positional pilot house which can be elevated for rough sea conditions with hinged windshield and side plates for protection from waves for the operators.

The present invention discloses a marine vessel with a monohedral v-shaped hull bow portion blending into catamaran hull sponsons, a center tunnel and individual terminal tunnels on each of the sponsons. This new hull design is capable of high speeds to travel to a desired location, while still providing platform stability and shallow draft of the catamaran shaped aft portion. A removable hull transom diffuser gate and a removable side hull deflector plate may be retracted and/or lowered to reduce the signature of the vessel underway. A retractable cockpit may be included to permit stacking of the marine vessels in order to allow multiple vessels to simultaneously be shipped in a C-130 or C-17 cargo plane to a distant location. This retractable cockpit may include a multi-positional pilot house which can be elevated for rough sea conditions with hinged windshield and side plates for protection from waves for the operators.

A floating vessel comprising: (a) opposing hulls; (b) a beam extending between and interconnecting the opposing hulls; and (c) a deck supported by the beam and positioned between the opposing hulls, wherein the floating vessel is modular and configured for easy assembly, disassembly, or both.

A floating vessel comprising: (a) opposing hulls; (b) a beam extending between and interconnecting the opposing hulls; and (c) a deck supported by the beam and positioned between the opposing hulls, wherein the floating vessel is modular and configured for easy assembly, disassembly, or both.

An augmentation amplifier is provided for aspirating gas flow from a surrounding medium. The amplifier connects at an inlet to a pressurized gas source and at an outlet to a gas receiver. Ambient gas from the medium supplements source provided compressed gas. The amplifier includes a Venturi conduit including a throat, an external cavity and a diffusion chamber. The conduit receives and flows pressurized gas from the inlet to the throat. The cavity receives ambient gas from the medium. The chamber expands and accelerates the pressurized gas from the throat to entrain the ambient gas via aspiration. The accelerated and ambient gases combine into an exhaust gas to the outlet.

An augmentation amplifier is provided for aspirating gas flow from a surrounding medium. The amplifier connects at an inlet to a pressurized gas source and at an outlet to a gas receiver. Ambient gas from the medium supplements source provided compressed gas. The amplifier includes a Venturi conduit including a throat, an external cavity and a diffusion chamber. The conduit receives and flows pressurized gas from the inlet to the throat. The cavity receives ambient gas from the medium. The chamber expands and accelerates the pressurized gas from the throat to entrain the ambient gas via aspiration. The accelerated and ambient gases combine into an exhaust gas to the outlet.

The invention relates to a watercraft having a hull (10), an introduction installation (20) for an object (70) to be anchored in the water, said introduction installation (20) being disposed on said hull (10), and at least one compressor (30) having at least one compressed-air line (40) which leads into the water and is coupled to at least one compressed-air distribution installation (45) which has a horizontal extent and for generating a bubble curtain (50) below the hull (10) has a multiplicity of mutually spaced apart outflow openings (46), characterized in that the hull (10) has at least two sub-hulls (11, 12) which are disposed so as to be mutually spaced apart and connected to one another, and a void (15) which is at least partially surrounded by the bubble curtain (50) is situated between the sub-hulls (11, 12).

The invention relates to a watercraft having a hull (10), an introduction installation (20) for an object (70) to be anchored in the water, said introduction installation (20) being disposed on said hull (10), and at least one compressor (30) having at least one compressed-air line (40) which leads into the water and is coupled to at least one compressed-air distribution installation (45) which has a horizontal extent and for generating a bubble curtain (50) below the hull (10) has a multiplicity of mutually spaced apart outflow openings (46), characterized in that the hull (10) has at least two sub-hulls (11, 12) which are disposed so as to be mutually spaced apart and connected to one another, and a void (15) which is at least partially surrounded by the bubble curtain (50) is situated between the sub-hulls (11, 12).

A nonlimiting example of a yacht preserver includes a handle, an inflator device connected to an upper end of the handle and an inflatable bladder connected to a lower end of the handle. In this nonlimiting example, the inflator device includes a gas canister that is connected to the inflatable bladder by a tube and is configured to deliver gas to inflate the bladder upon activation. The yacht preserver may be used to seal an opening of a yacht by placing the uninflated bladder near the opening in the yacht and activating the inflator device allowing the bladder to expand to seal the opening.

A nonlimiting example of a yacht preserver includes a handle, an inflator device connected to an upper end of the handle and an inflatable bladder connected to a lower end of the handle. In this nonlimiting example, the inflator device includes a gas canister that is connected to the inflatable bladder by a tube and is configured to deliver gas to inflate the bladder upon activation. The yacht preserver may be used to seal an opening of a yacht by placing the uninflated bladder near the opening in the yacht and activating the inflator device allowing the bladder to expand to seal the opening.