 The main armament of the "Momi"-class ships consisted of three Type 3 guns in single mounts; one gun forward of the superstructure in a well deck, one between the two funnels, and the last gun atop the aft superstructure.The guns were numbered '1' to '3' from front to rear.The ships carried two above-water twin sets of torpedo tubes; one mount was in the well deck between the forward superstructure and the forward gun and the other between the aft funnel and aft superstructure.