 Krasnyi Kavkaz was initially intended to accommodate eight 8 @-@ inch ( 200 mm ) guns in four twin turrets , but this was impossible given her small and lightly constructed hull . Three twin turrets mounting the new 57 @-@ caliber 180 mm ( 7 @.@ 1 in ) B @-@ 1 @-@ K gun under development also proved <unk> and the Soviets had to settle for four MK @-@ 1 @-@ 180 single 180 mm gun turrets , two at each end . Her superstructure was massively revised to fit these turrets and all of the original casemated 130 @-@ millimeter ( 5 @.@ 1 in ) / 55 <unk> Pattern 1913 guns were removed . As completed her secondary armament was only four 30 @-@ caliber 76 @.@ 2 mm <unk> AA guns mounted between her funnels . Her original internal torpedo tubes were replaced by four triple 533 @-@ millimetre ( 21 @.@ 0 in ) torpedo mounts mounted on each side of the main deck <unk> the forecastle break . She was given an aircraft @-@ handling crane , but a catapult wasn 't installed aft of her rear funnel until 1935 when a Heinkel catapult was imported from Germany . She was also fitted for mine rails with a capacity of up to 120 mines . 
