had a maximum range of when fired at an elevation of +20°. The ship stowed 160 rounds per gun. Smaller guns were carried for close-range defence against torpedo boats. These included fourteen 50-calibre Canet QF guns: four in hull embrasures and the remaining ten mounted on the superstructure. Potemkin carried 300 shells for each gun. They fired an shell at a muzzle velocity of to a maximum range of . She also mounted six Hotchkiss guns. Four of these were mounted in the fighting top and two on the superstructure. They fired a shell at a muzzle velocity of . Potemkin had five underwater torpedo tubes: one in the bow and two on each broadside. She carried three torpedoes for each tube. The model of torpedo in use changed over time; the first torpedo that the ship would have been equipped with was the M1904. It had a warhead weight of and a speed of with a maximum range of . In 1907, telescopic sights were fitted for the 12-inch and 6-inch guns. In that or the following year rangefinders were installed. The bow torpedo tube was removed in 1910–1911, as was the fighting top. The following year the main-gun turret machinery was upgraded and the guns were modified to improve their rate of fire to one round every 40 seconds. Two anti-aircraft (AA) guns were mounted on Potemkins superstructure on 3–6 June 1915; they were supplemented by two 75 mm AA guns, one on top of each turret, probably during 1916. In February 1916, the ship's four remaining torpedo tubes were removed. At some point during World War I, her 75 mm guns were also removed. Protection The maximum thickness of the Krupp cemented armour waterline belt was which reduced to abreast the magazines. It covered of the ship's length and plates protected the waterline to the ends of the ship. The belt was high, of which was below the waterline, and tapered down to a thickness of at its bottom edge. The main part of the belt terminated in transverse bulkheads. Above the belt was the upper strake of six-inch armour that was long and closed off by six-inch transverse bulkheads fore and aft. The upper casemate protected the six-inch guns and was five inches thick on all sides. The sides of the turrets were thick and they had a two-inch roof. The conning tower's sides were nine