2924 Results
  • Froude number (Fn)

    A non-dimensional number indicating the relation between a vessel’s length and its speed, expressed as Fn = V...

  • Fretting failure

    Keyed-taper connections, splines, bolted connections and clamped flanges give rise to fretting failure. The basis...

  • Fretting contact

    The contact between two surfaces under pressure and subject to a slight relative motion.

  • Freshwater generator, freshwater distiller

    A unit used for conversion of seawater into fresh water by vacuum distillation based on evaporation and condensation.

  • Frequency

    The number of complete cycles of a periodic process occurring per unit time. The frequency is expressed in Hertz...

  • Freight ferry CONTENTIN

    CONTENTIN has been built at the Aker, Helsinki shipyard for UK/France service. The large superstructure at the...

  • Freon

    A halogenated hydrocarbon usually given a number which is related to its chemical formula. It is used as a refrigerant.

  • Freight

    A sum of money paid for the hire of a ship or for carrying goods by sea.

  • Freezing point

    A temperature at which a liquid solidifies under controlled conditions.

  • Freeing port

    An opening in the lower portion of a bulwark which allows water shipped on deck to run freely overboard.

  • Freeboard Plan

    A set of drawings showing external openings (cargo hatchways, small hatches, ventilators, air pipes, side scuttles...

  • Freeboard mark

    see Load line mark.

  • Freeboard deck

    Normally, the uppermost complete deck exposed to weather and sea, which has permanent means of closing all openings...

  • Freeboard

    Freeboard is the distance measured from the waterline to the upper edge of the deck plating at side of the freeboard...

  • Free-fall of liquid

    The unrestricted fall of liquid into a tank.

  • Free-fall lifeboat

    A lifeboat constructed for free-fall launching. The certificate of approval for a free-fall lifeboat shall state...

  • Free-fall launching

    A method of launching a survival craft whereby the craft with its complement of persons and equipment on board...

  • Free-fall certification height

    The greatest launching height for which the lifeboat is to be approved, measured from the still water surface to...

  • Free-fall acceleration

    The rate of change of velocity experienced by the occupants during launching of a free-fall lifeboat.

  • Free surface effect

    When a tank is partially filled, the liquid’s centre of gravity position will change as the ship is inclined. Liquid...

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