187 Results
  • Fossil fuel

    Any naturally occurring organic fuel formed in the earth’s crust.

  • Foul of anchor

    Anchor cable is twisted around or it has been fouled.

  • Foul of propeller

    A line, wire, net, etc., is wound round the propeller.

  • Fouling

    A term used to describe the growth of marine plants and animals on man-made structures in the sea.

  • Fracture

    The propagation of a crack through the thickness of a material. It may be further described by nature of the surface...

  • Frame

    A term used to define one of the transverse members that constitute the riblike part of the skeleton of a ship...

  • Frame spacing

    The fore-and aft distance, heel to heel, of adjacent transverse frames.

  • Framing system

    Arrangements of stiffeners used to support hull plating. Two different types of framing are in general use or may...

  • Free surface effect

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

  • Freeboard

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

  • Freeboard deck

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

  • Freeboard mark

    see Load line mark.

  • Freeboard Plan

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

  • Free-fall acceleration

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

  • 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 launching

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

  • Free-fall lifeboat

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

  • Free-fall of liquid

    The unrestricted fall of liquid into a tank.

  • Freeing port

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

  • Freezing point

    A temperature at which a liquid solidifies under controlled conditions.

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