HMS M23

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History
United Kingdom
NameHMS M23
BuilderSir Raylton Dixon & Co.
Laid down1 March 1915
Launched17 June 1915
FateBroken Up 1959
General characteristics
Class and type
M15 class monitor
Displacement540 tons
Length177 ft 3 in (54.03 m)
Beam31 ft (9.4 m)
Draught6 ft 9 in (2.06 m)
Propulsion
  • 4-shaft
  • Bolinder 4-cylinder
    semi-diesel
  • 640 hp
Speed11 knots
Complement69
Armament
  • As built
  • 1 ×
    BL 9.2 inch Mk VI gun
  • 1 ×
    12pdr (76mm) QF Mk 1 gun
  • 1 ×
    6 pdr (57mm) QF MK 1 AA gun
  • 1918
  • 1 ×
    BL 7.5-inch (190.5 mm) Mk III 50-caliber gun
  • 1 ×
    QF 3-inch (76.20 mm) AA gun
  • 1 ×
    12pdr (76mm) QF Mk 1 gun
  • 2 ×
    QF 2-pounder Mark II

HMS M23 was a

Mediterranean and the Dover Patrol
, she was also served in the British intervention in Russia in 1919. Converted to the RNVR drillship Claverhouse in 1922, she served in that capacity at "Leith" until 1958.

Design

Intended as a shore bombardment vessel, M23's primary armament was a single

six pound 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.

Construction

HMS M23 ordered in March, 1915, as part of the

in March 1915, launched on 17 June 1915, and completed in July 1915.

World War 1

M23 served initially in the

BL 7.5-inch (190.5 mm) Mk III 50-caliber gun
was fitted in lieu.

M23 then served with the Dover Patrol from June 1917 to June 1918.

Russia

M23 next saw service in support of the

12pdr (76mm) QF Mk 1 gun
replaced by AA guns.

RNVR Claverhouse

M23 returned to

Royal Naval Volunteer Reserve (RNVR) drillship, and was renamed Claverhouse on 16 December 1922. She served in this capacity until sold in 1959. She arrived at Charlestown, Fife
on 21 April 1959 for breaking up.

Citations

References