Launched in 1917, completed in 1919, displacement 740 (surfaced)-1.100 (submerged) tons, horsepower 2.600 (surfaced)-1.200 (submerged) hp, oil-fired internal combustion machinery (surfaced)-electric machinery (submerged) and an armament 1-12pd gun, 1-3pd gun and 6-18” 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.
