A marine gangway has a tower adapted for attachment to a marine structure, rotatably about a tower rotational axis extending in a longitudinal direction of the tower. The tower has a tower aperture and at least one tower doorway arranged below and/or above the tower aperture where the tower aperture and the at least one tower doorway is adapted for people and/or goods to pass through. The marine gangway includes a gangway device comprising a gangway platform attached to the tower movably in the longitudinal direction of the tower, and a gangway rotatably attached to the gangway platform. The marine gangway further comprises a lift arranged inside the tower movable in the longitudinal direction of the tower. The lift has a lift doorway adapted to align with the tower aperture and with the at least one tower doorway as the lift moves in the longitudinal direction of the tower.

The invention belongs to the technical field of vehicles, and relates to a vehicle moving across a water-air interface. The vehicle includes a cabin base, a transformable sail, a reefing mechanism and a reefing control mechanism. By means of the reefing mechanism and the transformable sail, the present invention can freely switch between a surface navigation mode and an underwater navigation mode.

The present invention relates to a water-air interface vehicle suitable for concealed navigation. A gybing box is arranged in a hull and includes a gybing motor, a gear train, a worm wheel and worm mechanism and a base; the worm wheel and worm mechanism is connected with a shaft of the gybing motor by the gear train; the base is connected with the worm wheel and worm mechanism; the transformable sail is fixed to the base; the gybing box is connected with a reefing mechanism; the gybing box operates the transformable sail in a set attack angle range or rotates 90 degrees under the action of the reefing mechanism according to a signal sent by a control system.

A vessel is provided with a mast, sail, and halyard for hoisting the sail. The sail includes dollies configured to be movable along the mast. The mast includes a guide member, the guide dollies configured to cooperate with said guide member, wherein: the sail includes rigid panels, articulated two by two; the mast is equipped with a transit part positioned at the end of the guide member, which has a flared lower portion and is open at its opposite ends, wherein during hoisting of the sail, each dolly is received in the transit part and is guided along to leave it through its upper opening and cooperate with the guide member, while during its lowering, each dolly is disengaged from the guide member, is received in the transit part, moves along it, and escapes from it by following the movement of the portion of the sail with which it is integral.

An apparatus (100) for actuating a locking mechanism (12) of a locking sail track car (10) comprises a latch formation (116) disposed in a fixed position with respect to the track (14), a control surface (112) spaced from the latch formation (116) in a hoisting direction, and an actuator assembly (120) for attachment to the car (10). The actuator assembly (120) comprises an actuator (124) for operating a control member (24) of the car locking mechanism, and a latch element (158) connected to the actuator (124) and moveable between a first detent position in which the latch element (158) is not engageable with the latch formation (116) and a second detent position. The latch element (158) is arranged to cooperate with the control surface (112) upon movement of the actuator assembly (120) in the hoisting direction to set the latch element (158) into the second detent position, and is engageable with the latch formation (116) upon subsequent movement of the actuator assembly (120) in a loading direction with the latch element (158) in the second detent position. Engagement of the latch element (158) with the latch formation (116) fixes the actuator (124) in position with respect to the track (14) for operating the control member (24) of the car locking mechanism (12) upon subsequent movement of the car (10) in the loading direction, and urges the latch element (158) out of the second detent position and towards the first detent position such that subsequent movement of the actuator assembly (120) in the hoisting direction to disengage the latch element (158) from the latch formation (116) sets the latch element (158) back into the first detent position.

A water-air interface vehicle suitable for concealed navigation. A gybing box is arranged in a hull and includes a gybing motor, a gear train, a worm wheel and worm mechanism and a base; the worm wheel and worm mechanism are connected with a shaft of the gybing motor by the gear train; the base is connected with the worm wheel and worm mechanism; the transformable sail is fixed to the base; the gybing box is connected with a reefing mechanism; the gybing box operates the transformable sail in a set attack angle range or rotates 90 degrees according to a signal sent by a control system.