Petropavlovsk-class battleship

A postcard of Poltava
Class overview
Operators	Imperial Russian Navy  Imperial Japanese Navy
Preceded by	Sissoi Veliky
Succeeded by	Rostislav
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 triple-expansion steam engines
Speed	16 knots (30 km/h; 18 mph)
Range	3,750 nmi (6,940 km; 4,320 mi)
Complement	631–652, 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 group of three pre-dreadnought battleships built for the Imperial Russian Navy during the 1890s. They were transferred to the Pacific Squadron shortly after their completion in 1899–1900 and were 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. Her two sister ships, Sevastopol and Poltava, took part 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 in early 1905.

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. Chesma 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.