Copper sheathing is the practice of protecting the under-water hull of a ship or boat from the corrosive effects of salt water and biofouling through the use of copper plates affixed to the outside of the hull. It was pioneered and developed by the Royal Navy during the 18th century. The first experiments with copper sheathing were made in the late 1750s: the.
USS Constitution and the other five frigates of the original U.S. Navy were each of 1797, Constitution's lower hull required “12,000 feet of sheet copper” and USS Constitution's first copper sheathing in the summer of 1797.
They cause great damage to the bottoms of wooden ships by boring through all the Experiments with copper sheathing were first carried out in 1761, when the .
The first ship fully sheathed in copper was the 32-gun English frigate, . In the US Navy in the 1880s, copper-sheathing of new vessels had its.
The use of copper for sheathing the bottoms of wooden ships was first and zinc , with an addition of about 1 per cent of tin; this is known as 'naval brass'.