 In 1931 – 33 the AA guns were replaced with eight 40 @-@ caliber 12 @.@ 7 cm ( 5 @.@ 0 in ) Type 89 dual @-@ purpose guns , fitted on both sides of the forward <unk> 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 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 . Two twin @-@ gun mounts for license @-@ built Vickers two @-@ pounder light AA guns were also added . These guns had a maximum elevation of + 80 degrees and a rate of fire of 200 rounds per minute . The pair of 14 cm guns on the upper deck were removed at this time . 
