During the First Sino-Japanese War (1894–1895), both the Chinese and Japanese navies were equipped with Schwartzkopff torpedoes. The Chinese Navy had the first opportunity to employ their torpedoes during the Battle of Yalu River, but none were able to hit their targets. This poor performance was attributed to improper maintenance of the weapons by the Chinese. Five months later, during the Battle of Weihaiwei, the Japanese sent torpedo boats to attack the Chinese fleet. Firing eleven Schwartzkopff torpedoes, the Japanese managed to sink three Chinese warships. It was the most successful deployment of torpedoes at that point in history.