 HMS M30

HMS M30 was a Royal Navy "M29"-class monitor of the First World War.The availability of ten 6 inch Mk XII guns from the "Queen Elizabeth"-class battleships in 1915 prompted the Admiralty to order five scaled down versions of the "M15"-class monitors, which had been designed to use 9.2 inch guns.HMS "M30" and her sisters were ordered from Harland & Wolff, Belfast in March 1915.