Maritime concepts Flashcards
Aframax
Tanker carrying around 0.5 million barrels of oil, but usually applied to any tanker of 80,000–120,000 dwt (name derived from old AFRA chartering range).
Auxiliary engines
Small diesel engines on the ship used to drive alternators providing electrical power. They generally burn diesel oil. Ships generally have between three and five, depending on electricity requirements.
Ballast
Sea water pumped into carefully located ballast tanks, or cargo spaces, when the ship is not carrying cargo, to lower the ship in the water so that the propeller is sufficiently submerged to perform efficiently.
Berth
Designated area of quayside where a ship comes alongside to load or discharge cargo.
Bulk carrier
Single-deck ship which carries dry cargoes such as ore, coal, sugar or cereals. Smaller vessels may have their own cranes, whilst larger sizes rely on shore based equipment.
Bare boat charter
Similar to a lease. The vessel is chartered to a third party who to all intents and purposes owns it for the period of the charter, provides the crew, pays operating costs (including maintenance) and voyage costs (bunkers, port dues, canal transit dues, etc.), and directs its operations.
Bunkers
Fuel oil burned in ship’s main engine (auxiliaries use diesel)
Capesize
Bulk carrier too wide to transit the Panama Canal. Usually over 100,000 tonnes deadweight, but size increases over time, currently 170,000–180,000 dwt.
Charterer
Person or company who hires a ship from a shipowner for a period of time (time charter) or who reserves the entire cargo space for a single voyage (voyage charter).
Classification society.
Organization, such as Lloyd’s Register, which sets standards for ship construction; supervises standards during construction; and inspects the hull and machinery of a ship classed with the society at regular intervals, awarding the ‘class certificate’ required to obtain hull insurance. A ship with a current certificate is ‘in class’.
Container
Standard box of length 20 or 40 ft, width 8 ft and height 8 ft 6 in. High cube containers are 9 ft 6 in. high, and container-ships are usually designed to carry some of these.
Container-ship
Ship designed to carry containers, with cell guides in the holds into which the containers are lowered. Containers carried on deck are lashed and secured.
Compensated gross ton (cgt)
Measure of shipbuilding output based on the gross tonnage of the ship multiplied by a cgt coefficient reflecting its work content (see Appendix B).
Deadweight (dwt)
The weight a ship can carry when loaded to its marks, including cargo, fuel, fresh water, stores and crew.
Freeboard
Vertical distance between waterline and top of hull.
Freight rate
Amount of money paid to a shipowner or shipping line for the carriage
of each unit of cargo (lonne, cubic metre or container load) between named ports.
Freight alt kinds (FAK)
The standard rate charged per container, regardless of what commodity it is carrying, e.g. FAK rate of $1500 per TEU.
FEU
Forty-foot container (see TEU).
Gas tanker
Ship capable of carrying liquid gas at sub-zero temperatures. Cargo is kept cold by pressure, insulation, and/or refrigeration of ‘boil-off gas’ which is returned to the cargo tanks (see Chapter 14).
Gross ton (gt)
Internal measurement of the ship’s open spaces. Now calculated from a formula set out in the IMO Tonnage Convention.