Soviet cruiser Komintern

Pamyat' Merkuria
History
Russian Empire
Name	Pamiat' Merkuria
Namesake	Brig Mercury
Builder	Admiralty Wharf, Nikolayev, Russian Empire
Laid down	23 August 1901
Launched	20 May 1902
Commissioned	1905
Fate	Ship's crew pledged its allegiance to the Ukrainian People's Republic
Ukrainian People's Republic
Name	Pamiat' Merkuria (1917) Hetman Ivan Mazepa (1918)
Acquired	12 November 1917
Fate	Integrated into the Soviet Navy
Soviet Union
Name	Komintern
Namesake	Communist International
Acquired	1920
Commissioned	June 1923
Decommissioned	17 July 1942
Fate	Sunk as breakwater, late 1942
General characteristics (as built)
Class and type	Bogatyr-class protected cruiser
Displacement	6,645 long tons (6,752 t)
Length	134 m (439 ft 8 in)
Beam	16.6 m (54 ft 6 in)
Draught	6.3 m (20 ft 8 in)
Installed power	16 Normand boilers 23,000 shp (17,000 kW)
Propulsion	2 shafts; 2 triple-expansion steam engines
Speed	23 knots (43 km/h; 26 mph)
Complement	589
Armament	2 × twin, 8 × single 6 in (152 mm) guns 12 × single 75 mm (3.0 in) guns 8 × single 47 mm (1.9 in) guns 2 × single 37 mm (1.5 in) guns 2 × 15 in (380 mm) torpedo tubes
Armour	Deck: 80 mm (3.1 in) Turrets: 127 mm (5.0 in) Casemates: 80 mm (3.1 in) Conning tower: 140 mm (5.5 in)
General characteristics (after 1920s repair)
Type	Light cruiser
Displacement	6,340 long tons (6,440 t)
Length	134.9 m (442 ft 7 in)
Beam	16.4 m (53 ft 10 in)
Draft	6.8 m (22 ft 4 in)
Installed power	16 Belleville boilers 19,500 shp (14,500 kW)
Range	2,100 nmi (3,900 km; 2,400 mi) at 12 knots (22 km/h; 14 mph)
Complement	730
Armament	Initial 12 × 1, 2 × 2 – 130 mm (5.1 in) guns 2 × 3 – 457 mm (18.0 in) torpedo tubes 1930 refit 10 × 1 – 130 mm (5.1 in) guns 4 × 1 – 75 mm (3.0 in) guns Autumn 1941 6 × 1 – 130 mm (5.1 in) guns 4 × 1 – 76.2 mm (3.00 in) AA guns 3 × 1 - 25 mm (0.98 in) AA guns 195 × naval mines
Armor	Deck: 76 mm (3.0 in) Casemates: 76 mm (3.0 in) Conning tower: 152 mm (6.0 in)

Komintern was a Soviet light cruiser originally named Pamiat' Merkuria (Memory of Mercury), a Bogatyr-class protected cruiser built for the Imperial Russian Navy. She saw service during World War I in the Black Sea and survived the Russian Civil War, although heavily damaged. She was repaired by the Soviet Navy and put into service as a training ship. In 1941 she was reclassified as a minelayer and provided naval gunfire support and transported troops during the sieges of Odessa, Sevastopol, and the Kerch–Feodosiya operation in the winter of 1941–1942. She was damaged beyond repair at Poti by a German air attack on 16 July 1942. Afterwards she was disarmed and hulked. At some point^[1] she was towed to the mouth of the Khobi river and sunk there as a breakwater on 10 October 1942.