U

21 Results
  • ULEPSI tank support system

    Manufactured by Beele Engineering of the Netherlands, the support system suitable for tanks with cargo temperatures...

  • Ullage

    The distance from the top of the hatch, or from the top of the inspection cover in the hatch, down to the surface...

  • Ultra large crude carrier HELLESPONT ALHAMBRA

    During the golden boom years on the tanker market, from 1967 until the oil crisis of 1973, orders for about 80...

  • Ultra long stroke engine

    A slow-speed, two-stroke engine which uses a large stroke to bore ratio to utilize the improved thermodynamic efficiency...

  • Ultra low sulphur diesel

    Diesel fuel having sulfur content of 0.0015 percent (15 ppm) of sulfur or less, (EPA).

  • Ultrasonic testing

    The use of high frequency sound waves to test a material. They are reflected from the far side and can be displayed...

  • Umbilical

    The connecting hose to a tethered submersible unit and from this unit to the divers. It may contain life support...

  • Undercut

    A groove melted into the base metal adjacent to the weld toe or weld root and left unfilled by weld metal.

  • Underwater complex

    A complex comprising of any combination of habitats with transfer chambers, and may include a tethered or untethered...

  • Underwater container

    A permanently unmanned submersible vessel containing equipment that is to be protected from water. It may be anchored...

  • Underwater system

    A system comprising of one or more units with all their support components necessary to conduct a specified manned...

  • Underwater vehicles

    Self-propelled crafts intended for underwater operations that may or may not be independent of surface support...

  • Underwriter

    A person participating in an underwriting syndicate or group that provides insurance cover for a vessel.

  • Underwriting

    The manner in which ships and other vehicles of transport are insured.

  • UNIC davit

    A new space-saving lifeboat davit system for cruise vessels, developed by Schat-Harding.

  • UNIC engine automation system

    Modular, embedded control system for control and monitoring of diesel and gas engines developed by Wärtsilä.

  • UNILOCK

    The MacGregor universal twistlock that can be used as a semi-automatic twistlock, an automatic fixing cone or bottom...

  • Unsymmetrical flooding

    The entry of water into a compartment on one side of the ship which will cause heeling, in addition to the effects...

  • Upper flammable limit (UFL), upper explosive limit

    The concentration of a hydrocarbon gas in air above which there is insufficient amount of oxygen to support and...

  • Uptake

    A metal casing or large-bore piping which carries exhaust gases up through the funnel to the atmosphere.

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