Launched in 1916, completed in 1917, displacement 1.880 (surfaced)-2.560 (submerged) tons, horsepower10.000 (surfaced)-1.400 (submerged) hp, oil-fired turbine, all geared machinery (surfaced)-electric machinery (submerged) and an armament of 2-4“ guns, 1 machine gun 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.
