HMS Manxman was a British Abdiel class minelayer of 2650 tons displacement launched in 1940. HMS Manxman was armed with six 4.7-inch anti-aircraft guns and several smaller guns. She was powered by Admiralty 3-drum type boilers providing a top speed of 40 knots. Found on http://www.probertencyclopaedia.com/browse/RM.HTM