The ratio of delivered power to shaft power.

Hydraulically raised and lowered trailer which can slide through the center of a wheel-lesscassette to load and discharge it from the vessel

A vessel operating without a fixed itinerary or schedule or charter contract.

A large installation used on board train ferries to enable train transport on two decks.

A ship which transports railway carriages and passengers in a shuttle service between two particular terminals.

The trailing suction hopper dredger VASCO DA GAMA is designed to recover sand from the sea, haul it for long distances and place it ashore.

Air shuttle trailer, A trailer designed by Wallenius Wilhelmsen for transport of fully assembled railcars.

Mechanically-controlled fuel injection. Each engine cylinder has its own fuel injection pump and all the fuel is fed directly into the cylinder.

The rails fitted to the coaming with hatch cover wheels running on them.

The process of observing the sequential changes in the position of a target in order to establish its motion.

Fluids liable to cause death or severe injury or harm to health if swallowed or inhaled or absorbed by skin.

A device which controls the steel towline connecting the tug to its tow. It must be designed to transmit the full dynamic towing load to the tug hull, yet be ready to release in a moment in emergency.

A long, top-opened tank of a rectangular cross section equipped with a towing carriage that runs on two rails on either side.

A pair of hydraulic posts used to contain the work wire or mooring chain within a restricted area at the stern of AHTS vessels.

A device which enables slipping of the hook in case of emergency.

A device created primarily to enable a quick connection to a tow, and secondly to reduce the heeling moment on the tug during ship handling.

A disc-type towing hook with a safe working load of 65 ton, is fitted together with a double pole towing bitt on the aft deck.

The towing gear includes a “waterfall”-type hydraulic main towing winch with three declutchable drums.

Towing winches, hawser winches, towing hooks, tow bitts.

The icebreaking/offshore support vessel TOR VIKING is fitted with a Rauma Brattvaag waterfall winch of 400t pull and 550t brake holding load ratings.