A hatch power lift and locking system may include a hatch configured to cover an opening, the hatch being pivotable about an axis between a closed position and an open position. The assembly may also include at least one latch dog attached to the hatch, and at least one dog catch pin engaging with the at least one latch dog in the closed position. The at least one latch dog may include a latch slot for receiving the at least one dog catch pin, and a latch catch for engaging the at least one dog catch pin. The assembly may further include an actuator configured to move at least a portion of the hatch between the closed position and the open position.

The invention provides a multi-layer hatch cover support pad for supporting a hatch cover on a coaming structure of a ship. The multi-layer hatch cover support pad comprises an outer wear surface for sliding against a mating surface provided on the hatch cover or the coaming structure, a wear layer comprising first and second opposite sides, the first side defining the outer wear surface, the wear layer comprising a first plastic material, and, a base layer comprising third and fourth opposite sides, the third side being joined to the second side. The base layer comprises a second polymer material which is less abrasion resistant than the first plastic material. By making the base layer, which in practice makes up the main part of the multi-layer hatch cover support pad, out of the second polymer material, the cost of the multi-layer hatch cover support pad is decreased. The multi-layer hatch cover support pad may further comprise an internal wear indicator body for indicating wear of the wear layer and/or an identification unit for identifying the multi-layer hatch cover support pad. A method of producing the multi-layer hatch cover support pad, as well as a use of the multi-layer hatch cover support pad, is also provided.

A hatch power lift and locking system may include a hatch configured to cover an opening, the hatch being pivotable about an axis between a closed position and an open position. The assembly may also include at least one latch dog attached to the hatch, and at least one dog catch pin engaging with the at least one latch dog in the closed position. The at least one latch dog may include a latch slot for receiving the at least one dog catch pin, and a latch catch for engaging the at least one dog catch pin. The assembly may further include an actuator configured to move at least a portion of the hatch between the closed position and the open position.

The invention provides a multi-layer hatch cover support pad for supporting a hatch cover on a coaming structure of a ship. The multi-layer hatch cover support pad comprises an outer wear surface for sliding against a mating surface provided on the hatch cover or the coaming structure, a wear layer comprising first and second opposite sides, the first side defining the outer wear surface, the wear layer comprising a first plastic material, and, a base layer comprising third and fourth opposite sides, the third side being joined to the second side. The base layer comprises a second polymer material which is less abrasion resistant than the first plastic material. By making the base layer, which in practice makes up the main part of the multi-layer hatch cover support pad, out of the second polymer material, the cost of the multi-layer hatch cover support pad is decreased. The multi-layer hatch cover support pad may further comprise an internal wear indicator body for indicating wear of the wear layer and/or an identification unit for identifying the multi-layer hatch cover support pad. A method of producing the multi-layer hatch cover support pad, as well as a use of the multi-layer hatch cover support pad, is also provided.