In the Fourth Fleet Incident, during which a typhoon damaged virtually every ship in the Fourth Fleet, issues with the longitudinal strength of the "Fubuki"-class hull was discovered. As a result, all vessels were reconstructed between 1935 and 1937. An additional 40 tons of ballast was added, the bridge reduced in size and the height of the smoke stacks was decreased. The number of torpedo reloads were reduced from nine to three (for the center launcher only), and fewer shells were stored for the guns. The amount of fuel carried was also increased to help lower the center-of-gravity. Eight of the "Ayanami" class were retrofitted with the lighter "Type C" gun mounts, These changes increased the displacement to 2050 tons standard tons and over 2400 tons full load. The rebuild reduced the top speed slightly to 34 knots.