M

142 Results
  • Mevis duct

    see POWER-SAVING DEVICES.

  • Mezzanine decks

    Lightweight, movable decks used on fast ferries. If traffic is freight dominated, the crew can hydraulically raise...

  • Midship section

    1. The cross section through the ship, midway between the forward and after perpendiculars. 2. A drawing showing...

  • Midship section modulus

    The section modulus of a transverse section of a hull girder amidships, evaluated by taking into account the longitudinally...

  • Mill scale

    An oxide of iron which appears on the metal surface during manufacture. It is usually removed by suitable surface...

  • Miller timing

    In Wärtsilä engines the inlet valves close just before the piston reaches the bottom dead centre.

  • Mimic diagram

    A line diagram of a pipe system or items of equipment which includes miniature alarm lights or operating buttons...

  • Minimum breaking load of a mooring line (MBL)

    The minimum breaking load of a mooring line as declared by the manufacturer for a new line.

  • Minimum comfortable condition of habitability

    A condition in which at least services such as cooking, heating, domestic refrigeration, mechanical ventilation...

  • Minor failure of tanker

    Local fracture of a tank boundary weld.

  • Misalignment

    The distance between the axes of two shafts to be coupled together.

  • Mitsubishi Stator Fin

    A device aimed primarily at improving propulsive performance. It consists of fixed-type steel fins at the rear...

  • Mixed stowage

    A system to stow 20-feet containers into 40-feet cell guides. Starting from tank top you can stow from 1 to 4 tiers...

  • MMBTU

    One million British Thermal Units. BTU is a traditional unit of energy equal to 1055.06 joules. It is the amount...

  • MMSCFD

    Million standard cubic feet per day is a unit of measurement mainly used in the USA. Mainly used as a measure for...

  • MOB RETRIEVAL EQUIPMENT

    There are several types of man overboard retrieval equipment like ladders, scrambling nets, A-frames, Jason’s cradle...

  • Mobdock

    A steel box (mobile mini drydock) provided with an access hatch and used as an external enclosure to carry out...

  • MOBILE OFFSHORE DRILLING UNIT (MODUs)

    If geological predictions based on seismic surveys show that a particular offshore area offer promising prospects...

  • MOBILE OFFSHORE UNITS (MOUs)

    Mobile Offshore Units – Self-elevating or column-stabilized units, not fitted with drilling equipment, production...

  • Model testing tanks

    Towing tanks, manoeuvring and seakeeping basins used to carry out experiments with models.

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