Petropavlovsk class battleship (1897)

Sevastopol circa 1904–1905
Class overview
Operators:	Imperial Russian Navy  Imperial Japanese Navy (Captured ship only)
Preceded by:	Imperator Aleksandr II class
Succeeded by:	Tri Sviatitelia
Built:	1892–1898
In commission:	1897–1923
Completed:	3
Lost:	2
Scrapped:	1
General characteristics
Type:	Pre-dreadnought battleship
Displacement:	11,354–11,842 long tons (11,536–12,032 t)
Length:	376 ft (114.6 m)
Beam:	70 ft (21.3 m)
Draught:	28 ft 3 in (8.6 m)
Installed power:	10,600 ihp (7,904 kW) 14 or 16 cylindrical boilers
Propulsion:	2 shafts, 2 vertical triple-expansion steam engines
Speed:	16 knots (30 km/h; 18 mph)
Range:	3,750 nmi (6,940 km; 4,320 mi)
Complement:	652, 750 as flagship
Armament:	2 × twin 12 in (305 mm) guns 4 × twin, 4 × single 6 in (152 mm) guns 10 or 12 × single 47 mm (1.9 in) guns 28 × single 37 mm (1.5 in) guns 4 × 15-inch (381 mm) torpedo tubes 2 × 18-inch (457 mm) torpedo tubes
Armor:	Waterline belt: 10–16 in (254–406 mm) Gun turrets: 10 in (254 mm) Secondary turrets: 5 in (127 mm) Conning tower: 9 in (229 mm) Deck: 2–3 in (51–76 mm)

The Petropavlovsk class, sometimes referred to as the Poltava class, was a class of three pre-dreadnought battleships built for the Imperial Russian Navy during the 1890s. They were transferred to the Pacific Squadron upon completion and based at Port Arthur before the start of the Russo-Japanese War of 1904–1905. All three ships participated in the Battle of Port Arthur on the second day of the war. Petropavlovsk sank two months after the war began after striking one or more mines laid by the Japanese. The remaining two ships participated in the Battle of the Yellow Sea in August 1904 and were sunk or scuttled during the final stages of the Siege of Port Arthur.

Poltava was salvaged after the Japanese captured Port Arthur and incorporated into the Imperial Japanese Navy. The ship, renamed Tango in Japanese service, participated in the Battle of Tsingtao in late 1914, during World War I. She was sold back to the Russians in 1916 and renamed Chesma as her original name was in use by another battleship. The ship became the flagship of the Russian Arctic Flotilla in 1917 and her crew supported the Bolsheviks later that year. She was seized by the British in early 1918 when they intervened in the Russian Civil War, abandoned by them when they withdrew and scrapped by the Soviets in 1924.