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- fair
- to alter and obtain the proper shape or dimension
- fairing the lines
- checking and making adjustment to the curved lines drawn separately in the various plans (eg. lines plan body plan half-breadth plan or profile plan) such that any point on any plan should have the same breadth the same height and same distance forward or aft of a particular frame station as the same point drawn on other plans
- fairlead
- any fixture such as ring eye roller etc that guides a rope in the direction required
- fairway
- the path of water in a channel harbour or river that is navigable
- fall
- any rope for hauling
- fantail
- rounded or elliptical after deck which extends well aft of the after perpendicular and overhangs the propeller and rudder
- fathom
- the measurement unit for water depths and lengths of rope; 1 fathom is equivalent to 6 feet (1.83 metre); it came from the length measured across the outstretched arms of a man which was standardised as 6 feet
- fathometer
- echo sounder for measuring the depth of water
- faying surface
- contact surface between two adjoining parts
- feeder
- a temporary grain container or vertical trunk fitted in the hatch of a hold to feed it as the grain settles after loading
- feeder ship
- smaller ship which calls at less busy ports or ports inaccessible to deepsea vessels and carries cargo to major loading port for transhipment
- fender
- any material hung over the ships sides to prevent damage when coming alongside another ship or during berthing; may be old rubber tyres or a mass of old ropes
- fiddles
- wooden fittings which can be raised above the edges of table to prevent bowls cups plates etc. from sliding off the table in rough sea
- fiddley
- 1. space above boiler; 2. funnel casing
- fire point
- the lowest temperature at which the heat from the combustion of a burning vapour is capable of sustaining the combustion without the ignition source; this point is higher than the flash point
- first mate
- the next deck officer below master; also known as chief mate or chief officer
- fish plate
- the long narrow strip of steel plate projecting upwards at the edges of superstructure deck to prevent water from flowing over; sometimes written as fishplate
- fixture
- indicates a ship has been fixed for employment
- flag of convenience
- a foreign flag under which a ship is registered for the purpose of avoiding taxation etc.
- flame screen
- wire mesh made of high heat conductivity material and fitted around opening such as air vent heads of fuel tanks leading to atmosphere; it acts as a safety measure to prevent any flame from emitting out of the opening in case of fire within
- flash point
- the lowest temperature at which a liquid must be heated to give off a vapour that will ignite when a flame is applied under standard conditions
- flat rack
- an open type container with no sides or top; made up of a flat bed and two upright ends it is designed for carrying cargoes such as vehicles machinery etc.
- flotsam
- goods and ships gear that remain afloat after shipwreck
- fluke
- the hook of an anchor
- fog bell
- a bell rung by a ship anchored in fog at regular intervals
- fog horn
- a device used to emit horn; for use especially in fog
- fore and aft
- in the lengthwise direction of a ship running from stern to stem
- foreign going ship
- ship that trades in foreign ports of other countries
- foremast
- the ships most forward mast
- forestay
- stay or rope that is secured forward of the mast to support the latter against forces acting in the aft direction
- forty footer
- a popular term for 40 feet long container; commonly abbreviated as FEU which stands for Forty-foot Equivalent Unit
- forward perpendicular
- represented by a vertical line at the intersection of the designed load waterline and the forward side of the stem; FP in short
- fracture
- describes break or partial break of steel
- frame
- stiffening members placed at equidistant and to which the plating of a ship is attached
- frame spacings
- equidistant intervals between successive frame rings in the ships fore and aft line
- framing
- system of stiffening the shell bottom side and deck plating of a ship by intersecting strength members
- fray
- to become worn thin or untwisted at the edge of rope awning etc.
- freeboard
- the height of the ships side that is above the waterline; statutory freeboard is the vertical distance measured from the upper edge of the assigned deck line to the upper edge of the load line; this calculated height governs the maximum quantity of cargo a ship can legally take
- freeing ports
- openings cut in the bulwark to free the deck of water
- free pratique
- official permission from the port health authorities that the ship is without infectious disease or plague and the crew is allowed to make physical contact with shore; otherwise the ship may be required to wait at quarantine anchorage for clearance
- freight
- 1. cargo carried on a ship; 2. charges paid for the carriage of cargo from one place to another
- freight forwarder
- one who arranges shipments of cargoes on behalf of others
- freight rate
- fee payable to the carrier for the transportation of cargo from one place to another
- fresh water allowance
- 1. the amount that load lines assigned for sea water may be submerged when loading in fresh water; 2. amount by which the ship would submerge when going from salt water to fresh water
- fresh water generator
- equipment for producing fresh water from sea water during voyage; it may use the waste heat from main engines jacket cooling water to evaporate sea water in a vacuum condition and then condensing the steam to produce distilled water
- friction stir welding
- designed mainly for aluminium welding the very high speed rotation of specially profiled tool generates heat and causes the metal to be joined to soften and flow in the solid state to effect welding
- fuel cell
- a device that generates electrical power by electrochemically combining hydrogen and oxygen gases to produce water and heat; the energy released is tapped by electrodes as electric current; this technology is considered "green" i.e. environment friendly
- fumigate
- to destroy the vermin or insects in a ships superstructure or cargo holds using the fumes of certain chemicals
- funnel
- a metal chimney made of pipe through which exhaust gases of engines or boilers are led out of the machinery space to the atmosphere
