Bogatyr-class cruiser

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.
Description.
After the completion of the , the Russian Navy issued requirements for three large protected cruisers to three separate companies: was ordered from William Cramp & Sons in Philadelphia, United States, was ordered from Krupp-Germaniawerft in Kiel, Germany, and "Bogatyr" from Vulcan Stettin, also in Germany. Although "Askold" was the fastest cruiser in the Russian fleet at the time of its commissioning, "Bogatyr" was selected for further development into a new class of ships.
The "Bogatyr"-class cruisers normally displaced . The ships had an overall length of , a beam of and a mean draft of about . They were powered by two vertical triple-expansion steam engines, each driving one shaft, which developed a total of and gave a maximum speed of . The engines were powered by 16 coal-fired Belleville boilers. The ships had a range of at a speed of . The standard crew consisted of 573 officers and men.
The ships were rearmed during World War I with fourteen 55-caliber /55 B7 Pattern 1913 guns in single mounts, four of which were mounted in casemates. The anti-aircraft armament consisted of two guns.
The armored deck and the casemates were thick. The armor of the conning tower was thick.