| History | |
|---|---|
 United Kingdom | |
| Name | HMSM25 |
| Builder | Sir Raylton Dixon & Co. |
| Laid down | 1 March 1915 |
| Launched | 24 July 1915 |
| Fate | Scuttled in the Dvina River 16 September 1919 |
| General characteristics | |
| Class & type | M15 classmonitor |
| 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 |
|
| Speed | 11knots |
| Complement | 69 |
| Armament | |
HMSM25 was aFirst World WarRoyal NavyM15-classmonitor. She was also served in the British intervention in Russia in 1919, and wasscuttled in the Dvina River on 16 September 1919.
Intended as a shore bombardment vessel,M25's primary armament was a single9.2 inch Mk VI gun removed from theEdgar-classcruiserHMSEndymion.[1] In addition to her 9.2-inch gun she also possessed one12 pounder and onesix-pounder anti-aircraft gun. She was equipped with a four-shaft Bolinder four-cylinder semi-diesel engine with 640 horsepower that allowed a top speed of eleven knots. The monitor's crew consisted of sixty-nine officers and men.
HMSM25 ordered in March, 1915, as part of theWar Emergency Programme of ship construction. She was laid down at theSir Raylton Dixon & Co. Ltd shipyard in March 1915, launched on 24 July 1915, and completed in September 1915.
M25 served with theDover Patrol from September 1915 to June 1918. In early 1916,M25 had her main 9.2 in gun removed, as it was required for artillery use on theWestern Front, and aBL 7.5-inch (190 mm) MK III gun fromHMSSwiftsure was fitted in lieu.
M25 next saw service, along with five other monitors (M23,M27,M31,M33 andHMSHumber), which were sent toMurmansk in May 1919 to relieve theNorth Russian Expeditionary Force.
In June 1919,M25 moved toArchangel and her shallow draught enabled her to travel up theDvina River to cover the withdrawal of British andWhite Russian forces.M25 and her sister shipM27 were unable to be recovered when the river level fell and were scuttled on 16 September 1919 after running aground.
