Coiled ship. This ship type would most probably be an oil tanker or a tanker to carry liquids in bulk. It would be provided with coils through which steam is passed to heat the liquid to reduce its “viscosity” and enable it to be pumped more easily.


Containerisation system. Containers are not new. From earliest times human beings have used objects designed to hold other things. Even nature did this before man thought of it. The egg is an obvious example. The use of containers in shipping is also not new. Jars for oil and wine were used thousands of years ago.

Combination carrier. Fundamentally, this is a vessel designed to carry either liquid or dry bulk cargoes. If a vessel is a specialist vessel, for example, only carrying crude oil, there is a disadvantage to the shipowner because the vessel would have to be ballasted on one leg of each passage.

Colliery guarantee. This is an undertaking in a contract between the colliery owners and the charterer or shipowner. The colliery agrees to supply the cargo and load the vessel on usual colliery terms. If a reference to "colliery guarantee" is incorporated in a coal charterparty the charterer is relieved from any liability for delay to the vessel if the colliery does not supply the coal within the agreed laytime.


Cargo retention clause. When liquid cargoes are discharged from tankers differences can occur between the quantities stated in bills of lading to have been loaded and the quantities measured on discharge.

Ceiling.The ceiling consists of wooden planks laid on top of the double bottom tanks. The planks are laid longitudinally and prevent contact between the cargo and the double bottom.

COFC (Container on Flat Car). This form of transport is related to inter-modal transport in which a container with cargo in it would have been transported by sea or by road to a railhead and then loaded on to a flat rail-car for the remainder of the journey by rail. The deregulation of the railways in the United States in 1980 was extended to the intermodal COFC transport in March 1981 and this is one method of transporting goods which may have been the forerunner to other intermodal transport methods operated for containers, such as the DST or “Double stack trains” or the “piggy-back trains” operated by some railway companies and even traditional ocean carriers in the U.S.


Convenient speed. The stipulation in a voyage charterparty that the vessel, after completion of loading, shall proceed with all possible speed to port of destination, is usually changed into "with all convenient speed" or "with all reasonable speed" The latter expression eliminates any controversy, which may arise about the speed actually maintained on the voyage.

Classification surveys. Classification societies carry out various surveys on behalf of governments, particularly in order to ensure that the vessel complies with relevant standards that are required to be met for the issue of essential certificates, such as the Cargo Ship Safety Construction Certificate (SAFCON).

Cargo measurement. The EXXONVOY 84 tanker voyage charter form contains a comprehensive "Cargo measurement clause". Before loading, the master is required to measure the on-board quantities of oil, water and sediment residues, which are segregated in all holding tanks and slop tanks.

Brokerage (or Commission). It is customary to express the remuneration for the broker's time and efforts in negotiating and arranging the contract as a certain percentage of the money earned by the shipowner. (In marine insurance, the broker is generally paid a commission by the underwriter although the assured is the broker's client and the services are for the client.) In shipbroking, the term "brokerage" is generally preferable instead of "commission" because the latter term is usually related to the charterer's reward as "address commission".

Cargo-Quality. A description in the bill of lading as to the quality of goods does not bind the carrier. The person signing and issuing the bill of lading is not considered to have the expertise nor the duty to ascertain quality. The shipowner can adduce evidence to show that the goods were not of the quality stated on the bill of lading.