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  2. Offshore embedded anchors - Wikipedia

    en.wikipedia.org/wiki/Offshore_embedded_anchors

    A deep-penetrating anchor (DPA) is conceptually similar to a torpedo anchor: it features a dart-shaped, thick-walled, steel cylinder with flukes attached to the upper section of the anchor. A full-scale DPA is approximately 15 metres (49 ft) in length, 1.2 metres (4 ft) in diameter, and weighs on the order of 50–100 tonnes (49–98 long tons ...

  3. Sea anchor - Wikipedia

    en.wikipedia.org/wiki/Sea_anchor

    A marine parachute anchor for a large yacht awaiting bagging up. A conical sea anchor with tripline (from an illustration in The Sailors Handbook by Halsey C. Herreshoff). An early wooden drogue. A sea anchor (also known as a parachute anchor, drift anchor, drift sock, para-anchor or boat brake) is a device that is streamed from a boat in heavy ...

  4. 32-foot Transportable Port Security Boat - Wikipedia

    en.wikipedia.org/wiki/32-foot_Transportable_Port...

    32 ft Transportable Port Security Boat (TPSB) Builders: Kvichak Marine Industries: Operators: United States Coast Guard: Preceded by: 25 ft Transportable Port Security Boat: General characteristics; Displacement: 11,306 lbs: Length: 9.95 metres (32 ft 8 in) Beam: 2.59 metres (8 ft 6 in) Draft: Min 1 ft 9 in (0.53 m), Max 3 ft (0.91 m) Propulsion

  5. Suction caisson - Wikipedia

    en.wikipedia.org/wiki/Suction_caisson

    Suction caissons (also referred to as suction anchors, suction piles or suction buckets) are a form of fixed platform anchor in the form of an open bottomed tube embedded in the sediment and sealed at the top while in use so that lifting forces generate a pressure differential that holds the caisson down.

  6. Semi-trailer aerodynamic device - Wikipedia

    en.wikipedia.org/wiki/Semi-trailer_aerodynamic...

    Semi-trailer aerodynamic devices are devices affixed to semi-trailers, for the purpose of reducing aerodynamic drag caused by air turbulence.The two major types of device in use are trailer skirts (or side skirts), affixed to the underside of trailers, and trailer tails (or boat tails, or rear fairings), affixed to the rear.

  7. Single buoy mooring - Wikipedia

    en.wikipedia.org/wiki/Single_buoy_mooring

    The heart of each buoy is the product transfer system. From a geostatic location, e.g. a pipeline end manifold (PLEM) located on the seabed, this system transfers products to the offtake tanker. The basic product transfer system components are: Flexible subsea hoses, generally referred to as “risers” Floating hose string(s) Marine Breakaway ...