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A hat block, also known as a hat form or bashing block, is a wooden block carved into the shape of a hat by a craftsman known as a block shaper. It is used by hat makers and milliners [1] to produce a hat. Today there are only a handful of block shapers left. In the United Kingdom, hat block making has been listed as an endangered craft by the ...
Properly securing a line to a belaying pin starts by leading the line under and behind the base of the pin to begin the figure-8 pattern Lines coiled and secured by belaying pins A belaying pin is a solid metal or wooden device used on traditionally rigged sailing vessels to secure lines of running rigging .
In sailing, a block is a single or multiple pulley. One or a number of sheaves are enclosed in an assembly between cheeks or chocks. In use, a block is fixed to the end of a line, to a spar, or to a surface. A line (rope) is reeved through the sheaves, and maybe through one or more matching blocks at some far end, to make up a tackle.
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The volume of a ship's hull below the waterline (solid), divided by the volume of a rectangular solid (lines) of the same length, height and width, determine a ship's block coefficient. Coefficients [5] help compare hull forms as well: Block coefficient (C b) is the volume (V) divided by the L WL × B WL × T WL. If you draw a box around the ...
The block is typically attached to the boom by means of a bail, which is a U-shaped piece of metal, flattened at the ends to allow attachment with screws or rivets. In smaller boats such as dinghies it is used to control the angle of the sail to the wind on each point of sail.
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Fijian voyaging outrigger boat with a crab claw sail, an example of a typical Austronesian vessel with outriggers and a fore-and-aft sail A carved stone relief panel showing a Borobudur ship (Austronesian) from 8th century Java, depicted with outriggers and fore-and-aft tanja sails Chinese junk Keying with a center-mounted rudder post, c. 1848
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