In 1923 mentioned to be launched in 1924, completed in 1924, displacement 2.114 (surfaced)-2.520 (submerged) tons, horsepower 7.500 (estimated surfaced)-? (submerged) hp, oil-fired internal combustion machinery (surfaced)-electric machinery (submerged) and an armament of 1-5“ gun, 1-3“ anti aircraft gun and 6-21“ 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.
