 When she was modernized in the 1930s, a catapult and a collapsible crane were fitted on the stern, and both 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 and then by Mitsubishi F1M biplanes from 1942 on.When completed in 1915, the ships had two and two rangefinders in the forward superstructure, a rangefinder on the roof of Turret No.