 In an effort to conceal the defeat, the ship was not immediately removed from the Navy's registry of ships, instead being listed as "unmanned" before finally being struck from the registry on 25 September 1942.The IJN selected a modified version of the "Hiryū" design for mass production to replace the carriers lost at the Battle of Midway.Of a planned program of 16 ships of the "Unryū" class, only six were laid down and three were commissioned before the end of the war.