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Izumrud-class cruiser

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Izumrud-class cruiser

The Izumrud
Class overview
Completed: 2
Lost: 2
General characteristics
Type: Protected cruiser
Displacement: 3,103 long tons (3,153 t)
Length: 111 m (364 ft)
Beam: 12.2 m (40 ft)
Draught: 5 m (16 ft)
Propulsion: 3 shafts, triple expansion steam engines
16 Yarrow coal-fired boilers
17,000 hp (13,000 kW)
510 tons coal
Speed: 24 kn (44 km/h)
Range: 3,790 nmi (7,020 km)
Complement: 350
Armament: • 6 × 120 mm (4.7 in) guns
• 6 × 47 mm (1.9 in) guns
• 2 × 37 mm (1.5 in) guns
• 3 × 460 mm (18 in) torpedo tubes

The Izumrud-class were a group of two protected cruisers built for the Imperial Russian Navy.

The two ships Izumrud ("emerald") and the Zhemchug ("pearl"), were copies of newly designed Novik class ship that was built at the Schichau yard in Danzig, Germany. With the prototype purchased copies were soon underway at the Nyevsky Shipyard[1] in St. Petersburg between 1901-1904.[2]

Russo-Japanese War

After the attack on Port Arthur on the night of February 8, 1904, which started the Russo-Japanese war the Novik was the only ship to make a valiant effort and not be caught off guard. The Novik would later be a part of the Battle of the Yellow Sea on August 10, 1904, however after outrunning her opponents for some time and aiding the escape of her fellow comrades on other ships she was eventually cornered in Aniva Bay where the captain had her scuttled. However the job was not done so well and eventually was refloated by the Japanese who would use the Novik themselves for 6 years as the HIJMS Suzuya.[2]

Of the Izumrud and Zhemjung, after the nighttime raid on Port Arthur the Tzar had all available vessels sent from the Baltic to the Sea of Togo to reinforce Port Arthur and reclaim the waters around it.

At the Tsushima Straits after sailing 18,000 kilometers the fleet was set upon and began to make a run for it in retreat, eventually the faster ships made in to Manila where they would seek refuge. The Zhemjung was amongst those few and would therefore survive the battles. Of the 34 ships that had sailed from Russia, only 6 would survive the debacle.

As for the Izumrud, she had decided to make a run for the Russian port of Vladivostok and had nearly managed to escape her pursuers, but in the dead of night she ran aground, just 60 Kilometers from the port.[2] The crew escaped and would finally reach Vladivostok overland two days later.[3]

Zhemchug's Faith

As for Zhemchug, she would survive into World War I, when attached with the British Asiatic Fleet in Penang and a few French ships they were set upon in a surprise raid by the German cruiser Emden on October 28, 1914.[4] Zhenchug's main magazine store had been hit and she sank with 89 crew being killed and 143 wounded. Her commander was found negligent for being ashore with his mistress, with the magazine stores keys and having made no preparations. He would spend 3 1/2 years in prison.[2]


The two Russian built cruisers were 111m x 12.2m x 4.88m in size with a standard weight of 3,050 tons. They were armed with 6 120 mm 45 caliber guns, 6 47mm Hotchkiss 3-pounder guns, 2 37mm Hotchkiss 1-pounder guns and 5 356mm torpedo tubes.[2]

For prepulsion the ships would carry 5/600 tons of coal to fuel their 16 coal-fired Yarrow boilers, which combined would give 19,000 horsepower through its three screws turbines.[2] The ships could go a distance of 3,790 nautical miles if kept at 10 knots, while their top speed was 24 knots.

They would be crewed by a complement of 334 hands.


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