Launched in 1917, completed in 1918, displacement 485 (surfaced)-566 (submerged) tons, horsepower 1.000 (submerged)- (submerged) hp, oil-fired internal combustion machinery (surfaced)-electric machinery (submerged) and an armament of 1-13pd gun and 4 torpedo tubes for which 8 torpedoes were carried 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.
