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2. Anchor - Wikipedia

   en.wikipedia.org/wiki/Anchor

   Holding ground is the area of sea floor that holds an anchor, and thus the attached ship or boat. [4] Different types of anchor are designed to hold in different types of holding ground. [5] Some bottom materials hold better than others; for instance, hard sand holds well, shell holds poorly. [6] Holding ground may be fouled with obstacles. [6]

3. Offshore embedded anchors - Wikipedia

   en.wikipedia.org/wiki/Offshore_embedded_anchors

   Offshore embedded anchors are anchors intended for offshore use that derive their holding capacity from the frictional, or bearing, resistance of the surrounding soil, as opposed to gravity anchors, which derive their holding capacity largely from their weight. As offshore developments move into deeper waters, gravity-based structures become ...

4. Mooring - Wikipedia

   en.wikipedia.org/wiki/Mooring

   Multiple anchor mooring systems use two or more (often three) light weight temporary-style anchors set in an equilateral arrangement and all chained to a common center from which a conventional rode extends to a mooring buoy. The advantages are minimized mass, ease of deployment, high holding-power-to-weight ratio, and availability of temporary ...

5. Guy-wire - Wikipedia

   en.wikipedia.org/wiki/Guy-wire

   Guy-wire. A sailboat's mast is supported by shrouds (side-to-side) and stays (fore-and-aft) – nautical equivalents of guy wires. A guy-wire, guy-line, guy-rope, down guy, or stay, also called simply a guy, is a tensioned cable designed to add stability to a freestanding structure. They are used commonly for ship masts, radio masts, wind ...

6. History of the anchor - Wikipedia

   en.wikipedia.org/wiki/History_of_the_Anchor

   All of the above anchors were provide with a stock, the use of which is to "cant" the anchor. If it falls on the ground, resting on one arm and one stock, when a strain is brought on the cable, the stock cants the anchor, causing the arms to lie at a downward angle to the holding ground; and the pees enter and bury themselves below the surface ...

7. Dynamic positioning - Wikipedia

   en.wikipedia.org/wiki/Dynamic_positioning

   The term digital anchor has been used to describe such dynamic positioning systems. [4]. The applications and availability depends on the type of work and water depth. The most common position reference systems (PRS) and position measuring systems (PME) are: GPS satellite in orbit. DGPS, Differential GPS. The position obtained by GPS is not ...