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2. Boom vang - Wikipedia

   en.wikipedia.org/wiki/Boom_vang

   Due to the great force necessary to change the height of the boom while a boat is under sail, a line-based boom vang usually includes some sort of a pulley system. Hydraulic piston vangs are used on larger sailboats and controlled by manual or electric hydraulic pumps.

3. T-top (boat) - Wikipedia

   en.wikipedia.org/wiki/T-top_(boat)

   The top is tall enough to stand under, and provides shade and rain protection for two or more passengers at the boat's helm. The T-top is distinguished from other boat tops in that the entire structure is attached to the center console area, with no support brackets or straps connected to the outside of the boat, thereby providing 360-degree ...

4. Standing rigging - Wikipedia

   en.wikipedia.org/wiki/Standing_rigging

   Standing rigging comprises the fixed lines, wires, or rods, which support each mast or bowsprit on a sailing vessel and reinforce those spars against wind loads transferred from the sails. This term is used in contrast to running rigging , which represents the moveable elements of rigging which adjust the position and shape of the sails.

5. Stays (nautical) - Wikipedia

   en.wikipedia.org/wiki/Stays_(nautical)

   14 – spinnaker pole 15 – backstay 16 – forestay 17 – boom vang Stays are ropes, wires, or rods on sailing vessels that run fore-and-aft along the centerline from the masts to the hull, deck, bowsprit, or to other masts which serve to stabilize the masts. [1] A stay is part of the standing rigging and is used to hold a mast upright.

6. Stanchion - Wikipedia

   en.wikipedia.org/wiki/Stanchion

   Stanchions and velvet rope. A stanchion (/ ˈ s t æ n tʃ ən /) is a sturdy upright fixture that provides support for some other object. [1] It can be a permanent fixture. In nautical terms, the stanchion is the thick and high iron that with others equal or similar is placed vertically on the gunwale, stern and tops.

7. Derrick - Wikipedia

   en.wikipedia.org/wiki/Derrick

   The basket is constructed from a group of poles to form a polygon. There are crossbars between the pole members to strengthen their support. The supporting ropes are tied to the top of the basket poles on one end and joined together on the other end at a lower elevation than the top of the basket poles to form the base for the derrick tower.