Launched in 1913, completed in 1914, displacement 392 (surfaced)-620 (submerged) tons, horsepower 1.000 (surfaced)-600 (submerged), oil fired internal combustion machinery (surfaced) and electric machinery (submerged) and an armament of 4 torpedo tubes and 8 torpedoes. Suitable for coastal defence only.
Source
Archive Dutch Naval Staff 1886-1942 (National Archive at the Hague, Netherlands) inventory number 155. Fleets (the British Empire and foreign countries) on 1 February 1923.
