A process used primarily for the cutting out of steel components from plate in the workshop.

The bridge workstation, remote from the operational area of the bridge, which allows for the planning of routes and preparation of user-defined charts and radar maps.

The vehicle with the hull suitably shaped to develop the hydrodynamic forces during forward motion, sufficient to support the craft with a substantial proportion of the hull out of the water.

Wood covering for decks, etc.

A sacrificial anode placed just above the tank bottom in order to mitigate the general and pitting corrosion process.

A thin cylinder of material fitted at the bottom end of a piston. It serves to close the ports in a two-stroke engine.

A rectangular cross-section ring of cast iron which is cut to enable fitting over a piston. The ring fits into a groove and creates a gas tight fit of the piston when moving up and down in the cylinder.

Piston head – The upper part of a piston exposed to hot gases in an engine.

An integrated set of sub-sea flowlines and pipelines including pertinent instrumentation, foundation, coatings, anchors, etc, (ABS).

A significant part of pipelying vessel time is used for special operations like PLET handling or diameter changes.

Arrangement of two or more pipelines laid parallel and directly contiguous.

A primarily horizontal pipe lying on, near or beneath the seabed normally used for the transportation of hydrocarbon products, (ABS).

Deepwater installation vessel MIDNIGHT EXPRESS was converted from a former LASH barge by the Canadian shipyard Davie Maritime in Quebec.

J-lay method - One method for installing subsea pipelines in deepwater is by J-lay installation.

When a classed vessel suffers damage, the classification society carries out aseaworthiness survey after repairs have been completed.

Held by the shipowner it indicates registration of the vessel and gives full details of the ship. It is not a document of title to the ship.

A vertical plate on the ship's centreline between the outer and inner bottom plating, extending the length of the ship.

A line of symmetry between the port and starboard sides of any vertical section or any horizontal section. The middle line of the ship extending from stem to stern at any level.

SEVEN BOREALIS is 182.2m long, with a breadth of 46.2m, and an operating draft of 8.5-11.35m.

The point through which the resultant of resistance of the immersed hull to lateral motion passes.