Bogatyr-class cruiser

Oleg in April 1918
Class overview
Name	Bogatyr class
Operators	Imperial Russian Navy  Soviet Navy
Preceded by	Askold
Succeeded by	Novik
Built	1898–1907
In commission	1902–1942
Planned	5
Completed	4
Lost	1
General characteristics
Type	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-type boilers 23,000 ihp (17,000 kW)
Propulsion	2 shafts; 2 triple-expansion steam engines
Speed	23 knots (43 km/h; 26 mph)
Complement	589
Armament	12 × 152 mm (6 in) guns (2 twin turrets and 8 single guns), replaced by 130 mm (5 in) guns in subsequent refits for all ships 12 × 75 mm (3 in) guns 8 × 47 mm (1.9 in) guns 2 × 37 mm (1.5 in) guns 2 × 15 in (380 mm) torpedo tubes
Armour	Deck: 80 mm (3.1 in) Turrets: 127 mm (5 in) casemates: 80 mm (3.1 in) Conning tower: 140 mm (5.5 in)
Notes	Sunk in the Baltic Naval War, 1919

The Bogatyr class were a group of protected cruisers built for the Imperial Russian Navy. Unusually for the Russian navy, two ships of the class were built for the Baltic Fleet and two ships for the Black Sea Fleet.