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The metal sheathing of Cutty Sark, made from the copper alloy Muntz metal. Copper sheathing is a method for protecting the hull of a wooden vessel from attack by shipworm, barnacles and other marine growth through the use of copper plates affixed to the surface of the hull, below the waterline.
Copper sheathing: after many trials, copper was found to be a practicable means of protecting the hulls of ships from marine growth and fouling. Copper sheathing delayed the growth of weeds on the hull, improving the sailing performance of ships that had been long out of dock.
The copper sheathing on her hull needed to be replaced and Paul Revere supplied the copper sheets necessary for the job that took 14 days, ending on 25 June. [ 67 ] [ 68 ] [ 69 ] The ship departed Boston on 14 August, and it encountered an unknown ship in the darkness on 6 September, near the Rock of Gibraltar .
Copper sheathing was used on wooden ships in the latter 18th century and afterwards, as a method of preventing damage by teredo worms. The first historically documented use of copper sheathing was experiments held by the British Royal Navy with HMS Alarm, which was coppered in 1761 and thoroughly inspected after a two-year cruise. In a letter ...
Satisfied that the copper had had the desired effect, the Admiralty introduced copper sheathing on a number of frigates. In 1776 Alarm was resurveyed. It was soon discovered that the sheathing had become detached from the hull in many places because the iron nails which had been used to fasten the copper to the timbers had been "much rotted".
Paul Revere's interest in copper rolling began when, after the American Revolution, the American navy wanted to begin using this process of copper sheathing the nation's ships. Benjamin Stoddert , a successful businessman and ardent Federalist , recognized the importance of a powerful Navy in preserving the economic and political independence ...
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