page_title: Russian battleship Sinop
section_title: Design and development
hierarchical_section_title: Russian battleship Sinop / Design and development
caption_attribution_description: Right section and deck plan depicting Russian Ekaterina II class battleship. Top diagram (right side section) shows thickness of armour in inches. Bottom diagram (deck plan) shows gun sizes in inches.
context_page_description: The Russian battleship Sinop was a battleship built for the Imperial Russian Navy, being the third ship of the Ekaterina II class. She was named after the Russian victory at the Battle of Sinop in 1853. The ship participated in the pursuit of the mutinous battleship Potemkin in June 1905 and towed her back to Sevastopol from Constanța, Romania, where Potemkin had sought asylum. Several proposals were made for Sinop's reconstruction with modern guns and better quality armor during the 1900s, but both were cancelled. She was converted to a gunnery training ship in 1910 before she became a guardship at Sevastopol and had her 12-inch guns removed in exchange for four single 203 mm /50 guns in turrets. Sinop was refitted in 1916 with torpedo bulges to act as "mine-bumpers" for a proposed operation in the heavily mined Bosphorus. Both the Bolsheviks and the Whites captured her during the Russian Civil War after her engines were destroyed by the British in 1919. She was scrapped by the Soviets beginning in 1922.
context_section_description: Sinop was 331 feet 8.5 inches (101.1 m) long at the waterline and 339 feet 3 inches (103.4 m) long overall. She had a beam of 68 feet 11 inches (21.0 m) and a draft of 28 ft 3 in (8.6 m) more than 28 inches (711 mm) than designed. Her displacement was 11,310 long tons (11,490 t) at load, over 1,200 long tons (1,200 t) more than her designed displacement of 10,181 long tons (10,344 t).
  Sinop was the first large warship to use vertical triple expansion steam engines, having two 3-cylinder engines imported from Napier & Son of the United Kingdom. Fourteen cylindrical boilers provided steam to the engines. The engines had a total designed output of 9,000 indicated horsepower (6,711 kW), but they only produced 8,888 indicated horsepower (6,628 kW) on trials and gave a top speed of 15 knots (28 km/h; 17 mph). At full load she carried 900 long tons (910 t) of coal that provided her a range of 2,800 nautical miles (5,200 km; 3,200 mi) at a speed of 10 knots (19 km/h; 12 mph) and 1,367 nautical miles (2,532 km; 1,573 mi) at 14.5 knots (26.9 km/h; 16.7 mph).
  She differed from her sisters mainly in the design of her gun mounts. Sinop had six 12-inch (305 mm) Obukhov Model 1877 30-caliber guns mounted in twin barbette mounts, two forward, side by side, and one aft. Each of the forward mounts could traverse 30° across the bow and 35° abaft the beam, or a total of 155°. The rear mount could traverse 202°. Their rate of fire was one round every four minutes, thirty-five seconds, including training time. Sixty rounds per gun were carried. The main guns were mounted very low, (only 4 feet 6 inches (1.4 m)) above the main deck, and caused extensive damage to the deck when fired over the bow or stern. The seven 6-inch (152 mm) Model 1877 35-caliber guns were mounted on broadside pivot mounts in hull embrasures, except for one gun mounted in the stern in the hull. Six of the eight 47-millimeter (1.9 in) five-barreled revolving Hotchkiss guns were mounted in small sponsons that projected from the hull with the aftermost pair mounted in hull embrasures to defend the ship against torpedo boats. Four 37-millimeter (1.5 in) five-barreled revolving Hotchkiss guns were mounted in the fighting top. She carried seven above-water 14-inch (356 mm) torpedo tubes, one tube forward on each side, able to bear on forward targets, two other tubes were mounted on each broadside fore and aft of the central citadel; the seventh tube was in the stern.
caption: Right elevation and deck plan as depicted in Brassey's Naval Annual 1896
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