The Akizuki class destroyers was one of the primary classes of new destroyers of the Imperial Japanese Navy (IJN) after 1942. The IJN called them Destroyer Type-B from their plan name. They were designed to fight larger ships, aircraft and submarines.
This is considered to have been the most useful class of destroyers Japan fielded during the war and was well regarded in the IJN. They mounted a superb 3.9" (100mm) dual-purpose gun in four twin mounts. They also were among the first Japanese vessels equipped with radar. The ships were lighter in their torpedo armament, compared to contemporary destroyers (a single mount of four tubes, plus reloads), but the ships compensated with stronger anti-aircraft armament.
Fuyuzuki and Michizuki and the later ship which were not completed simplified materials and a method of the building.