Technical TermsRSS

Technical Terms


An order to 'vast hauling upon anything when it has come to its right position.


Standard Operating Procedure

Shipboard Oil Pollution Emergency ProcedureSet of instructions to use in case of oil discharge. On most vessels carrying dry goods it is only needed for bunkering operation. These instructions however include many drills which must be carried out and reco ...

Secretary of State's Representative for Marine salvage and Intervention


Special Protection Area

A winch having a rope storage capacity and used for topping, lowering and supporting a boom under load and no load.


Ship-port interface, IMO

An iron pin upon which the capstan moves. Also, a piece of timber forming the diameter of a made mast. Also, any long pin or bar upon which anything revolves.


Sinclair Roche & Temperley. Law firm located in London, Hong Kong, Shangai, Bucharest: ownership of shipping companies, chartering, carriage of goods, financing, insurance.

Special area of conservation Samsurface to air missile

Sunday, Saturday and Holidays Excluded. Method of calculating the Lay days. These days are not counted.

The maximum rope tension (in kilonewtons), measured at the drum exit when the drum ceases to rotate in the direction of haul, the prime mover being set for maximum torque and the rope being wound on the drum in a single layer.

Seafarer's Training, Certification and Watchkeeping Code 95

A piece of compass-timber, fixed on the after part of the apron inside. The lower end is scarfed into the keelson, and receives the scarf of the stem, through which it is bolted.


Stow (In SCRAP STW ABT 54').Stowage factor often expressed in cubic feet per ton.(Here 54 cubic feet per ton)

A kind of winch, which is applied on sweep/survey ship for receiving/ throwing and towing the sweeping apparatus and hawser, and performing of sweeping the sediments under sea.

Refers to the total weight of allowable lifting capacity of heavy cargo, together with the mass of the sub-hook (or fittings) under design working conditions. For the crane with variable-luffing, the safe working load is defined based on the luffing capac ...


Tango T = signal letter and flag. Morse = ( - )Flag= Red, white, blue vertical stripes.When hoisted singly from a ship it means : "Do not pass ahead of me."

A crane, with its boom structure consisting of several sections, each section being capable of telescoping along the boom’s axial direction and changing its boom length, and its boom being of luffing.

A winch, frequently unpowered, having rope storage capacity and used for topping and lowering a derrick boom while the boom is unloaded and for supporting it while it is supporting a load.