A two-way openable maritime hatch in which the articulating components that open the hatch, and hold it in an open position, are enclosed within a waterproof seal of the hatch when in closed position. The design uses a double hinge structure, which facilitates opening the hatch in either a forward- or aft-facing position. Elastic gaskets may be used to hold the hatch open in specific positions or at specific angles. Each of the hinge systems are independently operable.

A two-way openable maritime hatch in which the articulating components that open the hatch, and hold it in an open position, are enclosed within a waterproof seal of the hatch when in closed position. The design uses a double hinge structure, which facilitates opening the hatch in either a forward- or aft-facing position. Elastic gaskets may be used to hold the hatch open in specific positions or at specific angles. Each of the hinge systems are independently operable.

A camera mounting system for inspection is intended to be used with lights and a camera connected to a data transmission system to allow temporary installation of the mounting system upon a barge hatch to allow for visual confirmation via a camera or other digital imaging system of the interior space of the barge. The system is intended to be used to reduce personnel exposure to the interior of barges. The camera mounting system is portable and may be folded. The camera mounting system allows use with hatches generally rectangular at the access hatch as well as hatches having rounded or sweeping ninety degree type access hatches with the mounting system providing multiple positions for placement of the camera for either hatch type to ensure repeatability of the visual confirmation between various barge and barge configurations.

A two-way openable maritime hatch in which the articulating components that open the hatch, and hold it in an open position, are enclosed within a waterproof seal of the hatch when in closed position. The design uses a double hinge structure, which facilitates opening the hatch in either a forward- or aft-facing position. Elastic gaskets may be used to hold the hatch open in specific positions or at specific angles. Each of the hinge systems are independently operable.

A camera mounting system for inspection is intended to be used with lights and a camera connected to a data transmission system to allow temporary installation of the mounting system upon a barge hatch to allow for visual confirmation via a camera or other digital imaging system of the interior space of the barge. The system is intended to be used to reduce personnel exposure to the interior of barges. The camera mounting system is portable and may be folded. The camera mounting system allows use with hatches generally rectangular at the access hatch as well as hatches having rounded or sweeping ninety degree type access hatches with the mounting system providing multiple positions for placement of the camera for either hatch type to ensure repeatability of the visual confirmation between various barge and barge configurations.

A hull for deployment as an underwater habitable vessel is described. The hull has at least two hull wall modules connected in series to enclose an interior volume of the underwater habitable vessel. The interior volume is bounded by the hull wall modules. There is also provided a kit of parts for a hull of an underwater habitable vessel. The kit comprises at least two hull wall modules configured to be connected in series to enclose an interior volume of the underwater habitable vessel. The interior volume is bounded by the hull wall modules when connected.

A boat includes a hull provided with a rear stern hatch located in correspondence with an internal stern compartment of the hull and suitable for opening and closing in correspondence with an aperture of the compartment, the hatch having a body with opposed side located in correspondence with side walls of the compartment and a upper edge and a lower edge. The hatch includes an actuator to open and close the compartment arranged inside its own body. The actuator rotatably constraining at least one of the sides of the hatch to the hull. The body being not provided with any further connections of the sides to the hull.

A boat includes a hull provided with a rear stern hatch located in correspondence with an internal stern compartment of the hull and suitable for opening and closing in correspondence with an aperture of the compartment, the hatch having a body with opposed side located in correspondence with side walls of the compartment and a upper edge and a lower edge. The hatch includes an actuator to open and close the compartment arranged inside its own body. The actuator rotatably constraining at least one of the sides of the hatch to the hull. The body being not provided with any further connections of the sides to the hull.

A boat includes a hull provided with a rear stern hatch located in correspondence with an internal stern compartment of the hull and suitable for opening and closing in correspondence with an aperture of the compartment, the hatch having a body with opposed side located in correspondence with side walls of the compartment and a upper edge and a lower edge. The hatch includes an actuator to open and close the compartment arranged inside its own body. The actuator rotatably constraining at least one of the sides of the hatch to the hull. The body being not provided with any further connections of the sides to the hull.

A boat includes a hull provided with a rear stern hatch located in correspondence with an internal stern compartment of the hull and suitable for opening and closing in correspondence with an aperture of the compartment, the hatch having a body with opposed side located in correspondence with side walls of the compartment and a upper edge and a lower edge. The hatch includes an actuator to open and close the compartment arranged inside its own body. The actuator rotatably constraining at least one of the sides of the hatch to the hull. The body being not provided with any further connections of the sides to the hull.