 Ise was briefly fitted with an aircraft flying @-@ off platform for a Mitsubishi <unk> fighter on Turret No. 2 in 1927 . It was replaced by a platform on Turret No. 5 for a Yokosuka E1Y reconnaissance floatplane in 1928 – 29 . A catapult and a collapsible 4 @-@ tonne ( 3 @.@ 9 @-@ long @-@ ton ) crane were fitted on the stern during the mid @-@ 1930s modernization , and the ships were equipped to operate three floatplanes , although no hangar was provided . The initial Nakajima E4N2 biplanes were replaced by Nakajima E8N2 biplanes in 1938 . 
