HMS Porpoise (N14)
Grampus-class submarine
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HMS Porpoise (N14) was one of the six-ship class of Grampus-class mine-laying submarines of the Royal Navy. She was built at Vickers Armstrong, Barrow and launched 30 August 1932. She served in World War II in most of the naval theatres of the... Wikipedia
Launched: August 30, 1932
Builder: Vickers-Armstrongs