Launched in 1917, completed in 1918, displacement 569 (surfaced)-? (submerged) tons, horsepower 880 (submerged)-934 (submerged) hp, oil-fired internal combustion machinery (surfaced)-electric machinery (submerged) and an armament of 1-3”gun, 4 torpedo tubes for which 8 torpedoed were taken with her.
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.
