HMS E8

HMS E8 was a British E class submarine built at Chatham Dockyard. She was laid down on 30 March 1912 and was commissioned on 18 June 1914. She cost £105,700. During World War I she was part of the British submarine flotilla in the Baltic.

Service history
On 23 October 1915, she sank the 9,050 ton, 3 funnel armoured cruiser SMS Prinz Adalbert (1901) 20 nmi west of Libau. As the result of this action the submarine's commander, Commander Francis Goodhart, was awarded the Cross of St. George by Tsar Nicholas II. During her time in the Baltic Aksel Berg, who later became the founder of Soviet cybernetics, was her liaison officer.

E8 met her fate on 4 April 1918 outside Helsinki 1.5 nmi off Harmaja Light, Gulf of Finland. She was scuttled by her crew, along with HMS E1, HMS E9, HMS E19, HMS C26, HMS C27, and HMS C35 to avoid seizure by advancing German forces who had landed nearby.

She was then salvaged in August 1953 for breaking in Finland.