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  2. Anchor windlass - Wikipedia

    en.wikipedia.org/wiki/Anchor_windlass

    A windlass is a machine used on ships that is used to let-out and heave-up equipment such as a ship's anchor or a fishing trawl. On some ships, it may be located in a specific room called the windlass room. An anchor windlass is a machine that restrains and manipulates the anchor chain on a boat, allowing the anchor to be raised and lowered by ...

  3. Winch - Wikipedia

    en.wikipedia.org/wiki/Winch

    A winch is a mechanical device that is used to pull in (wind up) or let out (wind out) or otherwise adjust the tension of a rope or wire rope (also called "cable" or "wire cable"). In its simplest form, it consists of a spool (or drum) attached to a hand crank. Traditionally, winches on ships accumulated wire or rope on the drum; those that do ...

  4. Cathead - Wikipedia

    en.wikipedia.org/wiki/Cathead

    An anchor secured to the ship's side. The projecting beam the anchor hangs from when not secured is a cathead (left). The anchor has a stock (cross-piece, in this case wooden) below, and curved flukes above (end-on); the shank is the near-vertical metal bar running between them, lashed with the shank painter Cathead on bow of the barque James Craig; the cat tail protrudes onto the deck and is ...

  5. Capstan equation - Wikipedia

    en.wikipedia.org/wiki/Capstan_equation

    The formula is. where is the applied tension on the line, is the resulting force exerted at the other side of the capstan, is the coefficient of friction between the rope and capstan materials, and is the total angle swept by all turns of the rope, measured in radians (i.e., with one full turn the angle ). For dynamic applications such as belt ...

  6. Windlass - Wikipedia

    en.wikipedia.org/wiki/Windlass

    Differential windlass. The windlass / ˈwɪndləs / is an apparatus for moving heavy weights. Typically, a windlass consists of a horizontal cylinder (barrel), which is rotated by the turn of a crank or belt. A winch is affixed to one or both ends, and a cable or rope is wound around the winch, pulling a weight attached to the opposite end.

  7. Mooring - Wikipedia

    en.wikipedia.org/wiki/Mooring

    An anchor mooring fixes a vessel's position relative to a point on the bottom of a waterway without connecting the vessel to shore. As a verb, mooring refers to the act of attaching a vessel to a mooring. [ 1] The term likely stems from the Dutch verb meren (to moor ), used in English since the end of the 15th century.

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