 The Fusō class 's secondary armament changed significantly over time . During the modernizations of the 1930s , all of the 76 mm guns were replaced with eight 40 @-@ caliber 127 mm ( 5 @.@ 0 in ) dual @-@ purpose guns . These guns were fitted on both sides of the fore and aft superstructures in four twin @-@ gun mounts . When firing at surface targets , the guns had a range of 14 @,@ 700 metres ( 16 @,@ 100 yd ) ; they had a maximum ceiling of 9 @,@ 440 metres ( 30 @,@ 970 ft ) at their maximum elevation of + 90 degrees . Their maximum rate of fire was 14 rounds a minute , but their sustained rate of fire was around eight rounds per minute . During reconstruction , the two foremost 152 mm guns were also removed . 
