Japanese navy ordered building of very small torpedo boats according to the Dutch magazine Marineblad dated 1906-1907 no. 7

An item reported that for the Japanese navy some very small torpedo boats were built with a displacement of 14,45 tons and as dimensions 17,1 x 2,85 x 1,58 metres. Trial speed 19,25 miles. Fitted out with a Yarrow boiler. The armament consisted of 1-4,7cm gun and at both sides 1-35,5cm torpedo launcher.