D

205 Results
  • Doors

    Doors should generally open outwards to provide additional security against the impact of the sea. See also Bow...

  • Double Acting Pusher Puller Barge (DAPPB) system

    A new concept of artic transport based on the principle of a barge being pushed by a dedicated pusher tug in open...

  • Double Acting Technology (DAT)

    During winter tests of the Artic tanker UIKKU, it was found that a ship with an Azipod and well designed stern...

  • Double bottom

    Compartments at the bottom of a ship between the inner bottom and the shell plating. SOLAS 2009 specifies in detail...

  • Double bottom structure

    The shell plating with stiffeners below the top of the inner bottom and other elements below and including the...

  • Double-acting icebreaker FESCO SAKHALIN

    An important new stage in the advance of the Finnish double-acting concept has been reached with the handover by...

  • Double-acting tankers TEMPERA and MASTERA for navigating in ice

    Two innovative 106,000 dwt crude carriers TEMPERA and MASTERA were built by the Yokosuka shipyard of Sumitomo Heavy...

  • Double-ended ferry BASTØ III

    According to the Ferry Technology October 2005 In 2005 the Polish shipyard Remontowa SA delivered a 116m double-ended...

  • Double-ended ferry COASTAL RENAISSANCE

    According to Ferry Technology, December 2007/January 2008 Towards the end of 2007 the first of three new Coastal-class...

  • Doubler, doubler plate

    A small piece of plate attached to a larger area of plate that requires strengthening in that location. Usually...

  • Double-skin panel

    Hatch cover panel in which both top and bottom surfaces are plated-in.

  • Downhand

    A nonstandard term for flat welding position.

  • Draft survey

    Draft surveys are used to determine the weight of bulk cargo such as iron ore, coal, steel scrap, grain and some...

  • Drag

    Resistance (force) caused by friction in the direction opposite to the motion of the centre of gravity of a moving...

  • Drag coefficient

    A non-dimensional coefficient. Its quantity is a measure of the drag force exerted on a body of a particular shape...

  • Drag load

    The drag force acting on a particular body moving relative to a fluid within which it is immersed.

  • Dragging of anchor

    Uncontrolled moving of an anchor over the sea bottom because it no longer prevents the movement of the vessel.

  • Drain, drain line

    A pipe used for drainage.

  • Drainage hole

    A hole or opening used for the removal of water from an enclosed volume or surface to avoid flooding of the volume...

  • Draining valve

    A non-return valve used for drainage purposes.

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