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159 Results
  • Appendages

    The portions of a vessel extending beyond the main hull outline including such items as rudder, propellers, struts...

  • Approved equipment

    Equipment of the design that has been tested and approved by an appropriate authoritysuch as a government department...

  • AQUARIUS ballast water treatment plants

    Recognizing that no one solution is suitable across all ship types Wärtsilä Water Systems designed two technology...

  • Arbitration

    A method of settling disputes by one or more arbitrators. Quicker and less expensive than taking a case to court.

  • Arc welding

    Arc welding is the fusing of two metals using heat produced by an electric arc formed between them.

  • Archimedes’ principle and ship equilibrium

    A body immersed in fluid is subject to an upwards force equal to the weight of the fluid displaced.

  • ARCS Hydrographic Chart Raster Format

    A type of electronic navigational chart (ENC) format. The United Kingdom Hydrographic Office (UKHO) publishes the...

  • Argon

    An inert gas used to shield the molten metal during argon arc welding.

  • Arrangement of chocks and bitts for transit of Panama Canal

    A vessel passing through the locks shall normally be assisted by locks locomotives using steel towing wires. Article...

  • Arrest (marine insurance)

    By “Arrest” is meant the detention of a ship because of some infringement of regulations, either port or national...

  • Asphalt carrier ASPHALT SEMINOLE

    Built by Kraljevica Shipyard, Croatia, the ASPHALT SEMINOLE has been designed for worldwide service transporting...

  • Assembly

    A large three-dimensional structure of plating and sections used in the construction of a ship.

  • Assembly station

    Place on deck, in mess rooms, etc., assigned to crew and passengers where they have to meet according to the muster...

  • Astern

    1. Behind a vessel. 2. Backward; in a reverse direction. If a vessel moves backwards it is said to move astern...

  • As-welded

    The condition of weld metal, welded joints, and weldments after welding, but prior to any subsequent thermal, mechanical...

  • Asymmetrical stern

    A special configuration of the afterbody lines used to compensate for the side thrust generated by a propeller...

  • Athwartship

    Across the ship, at right angles to the fore-and-aft centre-line. Said of cargo stowed in this way, as opposed...

  • Atomization

    Subdivision of a material into its smallest particles, such as fuels reduced to a fine spray mist by diesel engine...

  • Atomizer

    A nozzle arrangement through which fuel oil is forced under pressure in order to leave as a fine spray i.e. atomized.

  • Atriums

    Atriums are public spaces within a single main vertical zone spanning three or more open decks, (SOLAS).

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