Pumps used for draining the ship various compartments. In passenger ships, the bilge pumps are to be located in separate watertight compartments.

The area of curved plating between the bottom shell and side shell.

The piping used for drain the bilge wells.

Part of the bilge system between the bilge pump and the bilge suction chest. Cofferdams, duct keels and tunnels, if fitted, should be provided with bilge suctions led to the main bilge line.

Fixed longitudinal plates fitted at the turn of the bilge so that their drag dampens roll amplitudes.

Supporting blocks used under the bilge for support during the vessel construction or dry-docking.

Regulation 16(5) of Annex I of MARPOL 73/78 stipulates that the oil content of the effluent from oily water separator should not exceed 15 parts of oil per million parts of water.

1. The intersection of bottom and side. 2. The lower parts of holds and machinery spaces where bilge water may accumulate.

A loop formed by doubling back a rope upon itself.

The larger end of a connecting rod, i.e. where it joins the crankpin of the crankshaft.

The angle between the flanges of a frame or other member.

Oil-lubricated white metal bearing usually consists of two bushes pressed into a stern-tube.

A split ring mounted on the sterntube. Removal of this ring enables the housing to be moved with respect to the bush, with the result that the lip seals move to an unworn contact surface.

The watertight tube enclosing and supporting the propeller shaft. It consists of a cast-iron or casted steel cylinder fitted with bearing surface within which the propeller shaft, enclosed in a sleeve, rotates.

Access equipment for ro-ro ships. The system consists of a watertight axial ramp/door with entering and bridging flaps.

Approaching and securing a vessel in a harbour, along a quayside (berth).

Mooring lines leading ashore from the after end or poop of a ship, often at an angle of about 45 degrees to the fore and the aft line.

To bring a ship into a berth or arrive at a berth.

A heavy strong member (large casting, forging or weldment) attached to after end of the keel.

1. A place assigned to a vessel when anchored or lying alongside a pier, etc. 2. A bunk or bed.