Russian cruiser Oleg

Oleg in April 1918
History
Russian Empire
Name:	Oleg (Russian: Олег)
Builder:	Admiralty Shipyard, Saint Petersburg
Laid down:	6 July 1902
Launched:	14 August 1903
Commissioned:	24 June 1904
Fate:	combat loss 17 June 1919
General characteristics
Class and type:	Bogatyr-class protected cruiser
Displacement:	6,975 long tons (7,087 t)
Length:	134.19 m (440.3 ft)
Beam:	16.61 m (54.5 ft)
Draught:	6.61 m (21.7 ft)
Installed power:	17,000 ihp (13,000 kW)
Propulsion:	2 shaft vertical triple expansion steam engines 16 Normand-type boiler
Speed:	23 knots (43 km/h; 26 mph)
Range:	2,100 nmi (3,890 km; 2,420 mi) at 12 knots (22 km/h; 14 mph)
Complement:	576 officers and crewmen
Armament:	12 × 6 in (150 mm) guns (2 twin turrets and 8 single guns), replaced by 5 in (130 mm) guns in subsequent refits for all ships 12 × 11-pounder guns 8 × 47 mm (1.9 in) guns 2 × 37 mm (1.5 in) guns 2 × 15 in (380 mm) torpedo tubes
Armor:	Harvey armor Deck: 35–80 mm (1–3 in) Conning tower: 140 mm (6 in)

Oleg (Russian: Олег) was the 4th and final Bogatyr-class protected cruiser built for the Imperial Russian Navy.

Oleg was laid down at the Admiralty Shipyards at St. Petersburg on 6 July 1902, launched on 14 August 1903 and commissioned into the Russian Baltic Fleet on 24 June 1904. With the Russo-Japanese War already in progress, she was seconded to the Russian Second Pacific Squadron.

Under the command of Admiral Oskar Enkvist, Oleg was part of the Russian Second Pacific Squadron, which sailed from the Baltic Sea around the world to relieve the Japanese blockade of the Russian Pacific Fleet at Port Arthur during the Russo-Japanese War. The squadron engaged Japanese Admiral Togo Heihachiro’s Combined Fleet at the Battle of Tsushima on 15 May 1905. During the battle, Oleg was damaged, but managed to escape and, together with the cruisers Aurora and Zhemchug reached the protection of the neutral port of Manila, where she was interned to the end of the war.

After returning to the Russian Baltic Fleet, Oleg was refit and her torpedo nets removed. She was available for active service again from 17 October 1908.

At the start of World War I, Oleg was part of the Russian 1st Cruiser Brigade in the Baltic Sea. On 26 August 1914, together with sister ship Bogatyr, she covered minelaying operations in the Baltic, as well as laying mines herself. Mines laid by Oleg are credited with sinking the German light cruiser SMS Augsburg off Bornholm.

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