High Quality Content by WIKIPEDIA articles! HMS L22 was a British L class submarine built by Vickers, Barrow-in-Furness. She was laid down on 28 November 1917 and was commissioned on an unknown date. L22 was sold on 30 August 1935 in Newport. The British L class submarine were originally planned under the emergency war programme as an improved version of the British E class submarine. The scale of change allowed the L class to become a separate class. The armament was increased when the 21-inch torpedoes came into service. The Group 3 boats had two QF 4-inch guns fore and aft of the lengthened conning tower.

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