An item reported the building of 2-55 feet units with a displacement of 11 tons, 750 hp horsepower, an armament of 2-18” torpedoes, depth charges and 4 machineguns although the details were not confirmed. Internal combustion gasoline or petrol fuelled machinery.
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.
