An open water transport system for payloads and a method for transporting payloads. The system includes two sponsons substantially parallel to the other. The sponsons are spaced apart from each other and extending in a forward direction. A deck plate module is detachably mounted on top of each sponson. A superstructure may be detachably mounted to the deck plate modules. The superstructure may bear a weight of one or more payloads. The carriage assembly couples to the payload(s). The carriage assembly has an adjustment mechanism that permits an operator to redistribute the weight of a payload. The open water transport system is towed by another vehicle.

Disclosed is a system and method for facilitating decision making on a watercraft (100). The system comprises one or more processors (102) configured to: acquire environmental data comprising measurements of one or more parameters of an environment in a locality of the watercraft (100); provide a plurality of digital models, each digital model modelling an effect of the environment on a respective capability of the watercraft (100), each capability of the watercraft (100) being assigned to one or more actions, each action being performable by the watercraft (100) or an entity on the watercraft (100); using the environmental data and the digital models, model an effect of the environment on the capabilities of the watercraft (100); receive a selection of an action; and, using outputs of each digital model that models a capability that is assigned to the selected action, determine a risk assessment for the selected action.

Disclosed is a system and method for facilitating decision making on a watercraft (100). The system comprises one or more processors (102) configured to: acquire environmental data comprising measurements of one or more parameters of an environment in a locality of the watercraft (100); provide a plurality of digital models, each digital model modelling an effect of the environment on a respective capability of the watercraft (100), each capability of the watercraft (100) being assigned to one or more actions, each action being performable by the watercraft (100) or an entity on the watercraft (100); using the environmental data and the digital models, model an effect of the environment on the capabilities of the watercraft (100); receive a selection of an action; and, using outputs of each digital model that models a capability that is assigned to the selected action, determine a risk assessment for the selected action.

A method includes: loading a vehicle onto a connector boat; loading the loaded connector boat onto the semi-submersible ship; transporting the semi-submersible ship having the loaded connector boat stored thereon to a location; taking water ballast onto the semi-submersible ship at the location; floating the loaded connector boat off of the semi-submersible ship; transporting the loaded connector boat to a second location; unloading the vehicle into water; and transporting the vehicle to a third location.

A method includes: loading a vehicle onto a connector boat; loading the loaded connector boat onto the semi-submersible ship; transporting the semi-submersible ship having the loaded connector boat stored thereon to a location; taking water ballast onto the semi-submersible ship at the location; floating the loaded connector boat off of the semi-submersible ship; transporting the loaded connector boat to a second location; unloading the vehicle into water; and transporting the vehicle to a third location.

The invention relates to an arrangement of one or more cryogenic tank containers for storing liquefied natural gas (LNG) or compressed natural gas (CNG) on an open deck of a tugboat. The one or more cryogenic tank containers are removably mounted on and at an aft deck area of the tugboat and are provided with means for supplying LNG or CNG to the engine of the tugboat.

The invention relates to an arrangement of one or more cryogenic tank containers for storing liquefied natural gas (LNG) or compressed natural gas (CNG) on an open deck of a tugboat. The one or more cryogenic tank containers are removably mounted on and at an aft deck area of the tugboat and are provided with means for supplying LNG or CNG to the engine of the tugboat.

A submersible device (2) for deploying or retrieving autonomous underwater vehicles (AUVs), the submersible device comprising: two or more platforms (130) arranged in a stack (3a, 3b), wherein each platform is configured to carry two or more of the AUVs; a port (300, 310); and a transfer mechanism (200) comprising a transfer device (210) arranged to load or unload the AUVs onto or from the platforms, and an actuator arranged to move the transfer device between the platforms and the port in order to transfer the AUVs between the platforms and the port.

A submersible device (2) for deploying or retrieving autonomous underwater vehicles (AUVs), the submersible device comprising: two or more platforms (130) arranged in a stack (3a, 3b), wherein each platform is configured to carry two or more of the AUVs; a port (300, 310); and a transfer mechanism (200) comprising a transfer device (210) arranged to load or unload the AUVs onto or from the platforms, and an actuator arranged to move the transfer device between the platforms and the port in order to transfer the AUVs between the platforms and the port.

According to a first aspect of the invention, there is provided a cradle assembly for cradling a boat, the cradle assembly comprising: a support, comprising one or more support fenders; one or more enclosure fenders extending along opposite lengths of the support; an arrestor located at one end of the support; an open-ended enclosure for a boat being formed between the support, the one or more enclosure fenders and the arrestor, the one or more support fenders facing into the enclosure, and the open end of the open-ended enclosure being opposite the arrestor.