 The Gangut-class ships were completed with only a single 3-inch (76 mm) 30-caliber Lender anti-aircraft (AA) gun mounted on the quarterdeck. This had a maximum depression of 5°and a maximum elevation of 65 °. It fired a 14.33-pound (6.50 kg) shell at a muzzle velocity of 1,929 ft / s (588 m / s). It had a rate of fire of 10 – 12 rounds per minute and had a maximum ceiling of 19,000 ft (5,800 m). Other AA guns were probably added during the course of World War I, but details are lacking, although Conway's says that four 75-millimeter (3.0 in) guns were added to the roofs of the end turrets during the war. Four 17.7-inch (450 mm) submerged torpedo tubes were mounted with three torpedoes for each tube.
