 During the course of the war the Imperial Russian and Imperial Japanese navies launched nearly 300 torpedoes at each other, all of them of the "self propelled automotive" type.The deployment of these new underwater weapons resulted in one battleship, two armoured cruisers, and two destroyers being sunk in action, with the remainder of the roughly 80 warships being sunk by the more conventional methods of gunfire, mines, and scuttling.On 27 May 1905, during the Battle of Tsushima, Admiral Rozhestvensky's flagship, the battleship , had been gunned to a wreck by Admiral Tōgō's 12-inch gunned battleline.