HMS Gibraltar was a twenty gun sixth-rate ship was built at Portsmouth dockyard and launched August 1754 with a crew complement of 160. She was 108 x 30.5 feet and 430 tons by the builders estimate
Admiral John Montagu reports HMS Gibraltar sailed from Boston to Lisbon in her way to England, June 28, 1773.National Archives. ADM1/484/130 f.230
HMS Gibraltar was broken up at Portsmouth, November 18, 1773.
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