High Quality Content by WIKIPEDIA articles! HMS Bangor was a Bangor-class minesweeper of the Royal Navy that served during the Second World War. She was built at the Harland and Wolff shipyard in Govan, Scotland. Bangor was the lead vessel of her class and one of the diesel-engined versions. She was ordered on 12 July 1939, laid down on 19 September 1939, launched on 23 May 1940, and commissioned on 7 November 1940.