The second class of German diesel-powered ocean-going attack submarines. All ships were built at the Germaniawertft shipyards in Kiel and entered service from 1911 to 1914.
The second class of German diesel-powered ocean-going attack submarines. All ships were built at the Germaniawertft shipyards in Kiel and entered service from 1911 to 1914.
The second class of German diesel-powered ocean-going attack submarines. All ships were built at the Germaniawertft shipyards in Kiel and entered service from 1911 to 1914.