HMS M22

HMS M22 was a First World War Royal Navy M15-class monitor. Later converted to a minelayer and renamed HMS Medea, she was wrecked whilst being towed for breaking up on 2 January 1939.

History
United Kingdom
Name	HMS M22
Builder	Sir Raylton Dixon & Co.
Laid down	1 March 1915
Launched	10 June 1915
Fate	Sold December 1938 and wrecked 2 January 1939
General characteristics
Class & type	M15-class monitor
Displacement	540 tons
Length	177 ft 3 in (54.03 m)
Beam	31 ft (9.4 m)
Draught	6 ft 9 in (2.06 m)
Propulsion	2 shaft Triple Expansion steam engines 650 ihp
Speed	11 knots
Complement	69
Armament	As built 1 × BL 9.2-inch Mk VI gun 1 × 12-pdr (76 mm) QF Mk 1 gun 1 × 6-pdr (57 mm) QF MK 1 AA gun 1918 1 × BL 9.2-inch Mk VI gun 1 × QF 3-inch (76.20 mm) AA gun 1 × 6-pdr (57 mm) QF MK 1 AA gun

Design

Intended as a shore bombardment vessel, M22's primary armament was a single 9.2 inch Mk VI gun removed from the Edgar-class cruiser HMS Gibraltar.^[1] In addition to her 9.2 inch gun she also possessed one 12 pounder and one six pound anti-aircraft gun. Due to the shortage of Bolinder diesel engines that equipped her sisters, she was fitted with 2 shaft triple expansion steam engines that allowed a top speed of eleven knots. The monitor's crew consisted of sixty nine officers and men.

Construction

HMS M22 ordered in March, 1915, as part of the War Emergency Programme of ship construction. She was laid down at the Sir Raylton Dixon & Co. Ltd shipyard at Govan in March 1915, launched on 10 June 1915, and completed in August 1915.

World War 1

M22 served within the Mediterranean from September 1915 to December 1918.

Interwar service

After service in the Black Sea from June to September 1919, M22 was towed home and converted to a minelayer in 1920. Renamed HMS Medea on 1 December 1925, she became a training ship in January 1937.