Browsing Master's Theses by Subject "Navigational aids"
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American Lightships, 1820-1983 : History, Construction, and Archaeology within the Maritime Cultural Landscape
(East Carolina University, 2011)In 1820, the United States Government began funding construction and conversion of watercraft for use as lightships. Floating beacons utilized to mark dangerous shoals, reefs, and shifting channels in inland as well as ...