USCGC Mackinac
USCGC ''Mackinac'' has been the name of more than one United States Revenue Cutter Service and United States Coast Guard ship, and may refer to: * , a patrol boat which served in the Revenue Cutter Service from 1903 to 1915 and in the Coast Guard (as USCGC ''Mackinac'') from 1915 to 1917 and from 1919 to 1939 * , later WHEC-371, a cutter in commission from 1949 to 1967 See also * * * {{DEFAULTSORT:Mackinac, Uscgc Ships of the United States Revenue Cutter Service United States Coast Guard ship names ...
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Ships Of The United States Revenue Cutter Service
A ship is a large watercraft that travels the world's oceans and other sufficiently deep waterways, carrying cargo or passengers, or in support of specialized missions, such as defense, research, and fishing. Ships are generally distinguished from boats, based on size, shape, load capacity, and purpose. Ships have supported exploration, trade, warfare, migration, colonization, and science. After the 15th century, new crops that had come from and to the Americas via the European seafarers significantly contributed to world population growth. Ship transport is responsible for the largest portion of world commerce. The word ''ship'' has meant, depending on the era and the context, either just a large vessel or specifically a ship-rigged sailing ship with three or more masts, each of which is square-rigged. As of 2016, there were more than 49,000 merchant ships, totaling almost 1.8 billion dead weight tons. Of these 28% were oil tankers, 43% were bulk carriers, and 13% were cont ...
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