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As distinguished from engineer officer, refers to all officers who assist the master in navigating the vessel when at sea, and supervise the handling of cargo when in port.

Related Terms


an expression used in connection with the discharge of a cargo or part of a cargo where the master deems fit to discharge at the nearest convenient port if a vessel runs the risk of being frozen in.


  1. A place or room for the stowage of cargo in a vessel.
  2. The act of stowing cargo aboard a vessel.
  3. To arrange (cargo, goods, etc.) in the hold of a vessel; to move or rearrange such goods; the pulling and moving about of packages incident to close stowage aboard a vessel.
  4. To search a vessel for smuggled goods, e.g.


A charter for a particular vessel to move a single cargo between specified loading port(s) and discharge port(s) in the immediate future. Contract rate (spot rate) covers total operating expenses, i.e., bunkers, port charges, canal tolls, crew's wages and food, insurance and repairs. Cargo owner absorbs, in addition, any expenses specifically levied against the cargo.


(VLFO) - The loading and discharge terms for the cargo to be shipped, as agreed to in the charterer party. The vessel (carrier) pays for the loading of the cargo on board the ship and the receiver pays for the discharge of the cargo from the ship to the pier.


A common measure of ship carrying capacity. The number of tons (2240 lbs.) of cargo, stores and bunkers that a vessel can transport. It is the difference between the number of tons of water a vessel displaces 'light' and the number of tons it displaces 'when submerged to the 'deep load line'.' A vessel's cargo capacity is less than its total deadweight tonnage. The difference in weight between a vessel when it is fully loaded and when it is empty (in general transportation terms, the net) measured by the water it displaces. This is the most common, and useful, measurement for shipping as it measures cargo capacity.


A ship whose cargo holds are shaped so that the cargo levels by itself.


A large cargo vessel that cannot transit either the Panama or Suez Canals, typically greater than 120 000-180 000 DWT.


The transfer of goods from one vessel to another outside harbors


When a liner cargo vessel accepts extra cargo to fill up the empty space remaining.


An area generally outside port limits that is specifically designated as suitable for the transshipment of oil or other materials from large ships to smaller ones. As the purpose of transshipment is usually to reduce the draft of the larger vessel to allow her to proceed to port, the operation is often known as lightening and the area may be called lightening area or cargo transfer area

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