Launched in 1915, completed in 1916, displacement 854 (surfaced)-1.291 (submerged) tons, horsepower 4.000 ( steam surfaced)-1.640 (submerged) hp, oil-fired turbine direct drive machinery (surfaced)-electric machinery (submerged) and an armament of 2-14pd guns and 8 torpedo tubes.
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.
