The Havmanden was a Danish H Class submarine of 314 tons displacement launched in 1937. The Havmanden had a top speed of 15 knots surfaced, 7 knots submersed and carried a complement of 20. She was armed with two 40 mm anti-aircraft guns; two 8 mm anti-aircraft guns; three 18-inch torpedo tubes in the bow and two 18-inch torpedo tubes in the stern....
Found on http://www.probertencyclopaedia.com/browse/RH.HTM
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