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SHIP'S BOLLARDS (STANDARD).

Bollards are invariably made of cast iron of good quality, and should be fairly smooth castings. In small yacht and high class work they are sometimes made of gunmetal, and in battleships of steel. The bolt holes should not be cored but drilled and countersunk afterwards, the bolts being of BB iron or steel with full countersunk heads.

The diameter B of the barrel should be in accordance with the sizes given in the table, opposite the corresponding length of vessel, and with this dimension as a unit the proportionate sizes of the various parts calculated from the appended proportion table and diagram :

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N.B.

The extra heavy bollards on forecastle head and quarters should be larger than given in table for the corresponding length of ship.

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