Russian battleship Imperatritsa Mariya

Imperatritsa Mariya at anchor in Sevastopol
History
Imperial Russian Navy
Name:	Imperatritsa Mariya
Namesake:	Maria Feodorovna
Operator:	Imperial Russian Navy
Ordered:	13 April 1912
Builder:	Russud Shipyard, Nikolayev
Laid down:	30 October 1911
Launched:	19 October 1913
In service:	10 June 1915
Out of service:	Sunk by internal explosion, 20 October 1916
Struck:	21 November 1925
Fate:	Scrapped beginning 1926
General characteristics
Class and type:	Imperatritsa Mariya-class battleship
Displacement:	23,413 long tons (23,789 t)
Length:	168 m (551 ft 2 in)
Beam:	27.43 m (90 ft 0 in)
Draft:	8.36 m (27 ft 5 in)
Installed power:	26,000 shp (19,000 kW) 20 Yarrow boilers
Propulsion:	4 × Shafts 4 × Brown-Curtiss steam turbines
Speed:	21 knots (39 km/h; 24 mph)
Range:	1,640 nmi (3,040 km; 1,890 mi) at 21 knots (39 km/h; 24 mph)
Complement:	1,213
Armament:	4 × triple 12-inch (305 mm) guns 20 × single 130-millimeter (5.1 in)B7 Pattern 1913 guns 4 × single 75-millimeter (3.0 in) AA guns 2 × twin 17.7-inch (450 mm) submerged torpedo tubes
Armor:	Waterline belt: 125–262.5 mm (4.92–10.33 in) Deck: 9–50 mm (0.35–1.97 in) Turrets: 250 mm (9.8 in) Barbettes: 250 mm (9.8 in) Conning tower: 300 mm (11.8 in)

Imperatritsa Mariya (Russian: Императрица Мария: Empress Maria) was one of three Imperatritsa Mariya-class dreadnoughts built for the Imperial Russian Navy, lead ship of her class. Construction began before World War I and she served with the Black Sea Fleet during the war. She covered older pre-dreadnought battleships as they bombarded Ottoman facilities in 1915 and engaged the Ottoman light cruiser Midilli,(formerly the German SMS Breslau) several times without inflicting anything more serious than splinter damage. Imperatritsa Mariya was sunk at anchor in Sevastopol by a magazine explosion in late 1916, killing 228 crewmen. She was subsequently raised, but her condition was very poor. She was finally scrapped in 1926.

Imperatritsa Mariya was 168 meters (551 ft 2 in) long at the waterline. She had a beam of 27.43 meters (90 ft 0 in) and a draft of 8.36 meters (27 ft 5 in). Her displacement was 23,600 long tons (23,979 t) at load, 1,000 long tons (1,016 t) more than her designed displacement of 22,600 long tons (22,963 t). She proved to be very bow-heavy in service and tended to ship large amounts of water through her forward casemates. The ammunition for the forward 12-inch (305 mm) guns was reduced from 100 to 70 rounds each, while the 130-millimeter (5.1 in) ammunition was reduced from 245 to 100 rounds per gun, in an attempt to compensate for her trim. This did not fully cure the problem, but Imperatritsa Mariya was lost before any other changes could be implemented.