A gate system for a pontoon boat is provided. The gate system may comprise a gate, a guide, and a guide interface member.

A ferry with a first loading port defining a first portion and a second portion, the loading port allowing vehicles to roll onto a ferry deck. The first portion is closeable by a first closure, and the second portion is closable by a spray cover. The first closure is movable between an open position opening the first portion of the first loading port and forming an extension of the ferry deck and a closed position extending in an upright direction from the ferry deck to a frontal position at which it terminates and closes the first portion of the first loading port. The spray cover is movable between an open position in which it opens the second portion of the first loading port and a closed position in which it extends from a central roof position to the frontal position and closes the second portion of the first loading port.

A ferry with a first loading port defining a first portion and a second portion, the loading port allowing vehicles to roll onto a ferry deck. The first portion is closeable by a first closure, and the second portion is closable by a spray cover. The first closure is movable between an open position opening the first portion of the first loading port and forming an extension of the ferry deck and a closed position extending in an upright direction from the ferry deck to a frontal position at which it terminates and closes the first portion of the first loading port. The spray cover is movable between an open position in which it opens the second portion of the first loading port and a closed position in which it extends from a central roof position to the frontal position and closes the second portion of the first loading port.

A material-actuated door includes a door housing including a flexible material; and one or more least one Shape Memory Alloy (SMA) actuators embedded in the door housing. Each SMA actuator is elastically biased in a first actuator physical state and is configured to transition into a second actuator physical state in response to receiving electrical current. The material-actuated door is transitioned into a first door position in response to disconnecting the electrical current to the at least one SMA actuator, and is transitioned into a second door position in response to delivering the electrical current to the at least one SMA actuator.

A material-actuated door includes a door housing including a flexible material; and one or more least one Shape Memory Alloy (SMA) actuators embedded in the door housing. Each SMA actuator is elastically biased in a first actuator physical state and is configured to transition into a second actuator physical state in response to receiving electrical current. The material-actuated door is transitioned into a first door position in response to disconnecting the electrical current to the at least one SMA actuator, and is transitioned into a second door position in response to delivering the electrical current to the at least one SMA actuator.

A ship having a first hatch element covering an opening in the freeboard and a second hatch element covering an opening in an upper deck. To enable a more flexible cargo handling, the second hatch element protrudes sideways over the freeboard in its open position, and it can therefore be used as a crane for cargo handling.

A ship having a first hatch element covering an opening in the freeboard and a second hatch element covering an opening in an upper deck. To enable a more flexible cargo handling, the second hatch element protrudes sideways over the freeboard in its open position, and it can therefore be used as a crane for cargo handling.