 The ships also mounted five or six 40 @-@ caliber 76 mm anti @-@ aircraft ( AA ) guns . The 76 @-@ millimetre ( 3 in ) high @-@ angle guns were in single mounts on both sides of the forward superstructure , both sides of the second funnel , and each side of the aft superstructure ( Fusō lacked the starboard side aft gun ) . Each of these guns had a maximum elevation of + 75 degrees , and could fire a 6 kg ( 13 lb ) projectile with a muzzle velocity of 680 m / s ( 2 @,@ 200 ft / s ) to a maximum height of 7 @,@ 500 metres ( 24 @,@ 600 ft ) . Both ships were equipped with six submerged 533 @-@ millimetre ( 21 @.@ 0 in ) torpedo tubes , three on each broadside . 
