The first aluminum boats built in the United States were for the polar expedition of American journalist and explorer Walter Wellman in 1894, although the first known use of aluminum was in Europe in 1891. After World War II (1939-1945), aluminum boats became common, usually in the form of canoes or simple craft used for sport fishing. These boats are built from sheets of aluminum, perhaps given curvature by stamping, and are fastened together with rivets. Sandwich-type constructions, intended to increase both lightness and strength, are under development.
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