Also the Mutsuki-class ships had only hull numbers at first due to the projected Eight-eight fleet plan, which proved to be unpopular with their crews due as they were a constant source of confusion in communications. Thus, they were given names at August 1928, taken from traditional poetic names of the months of the year by the Lunar calendar or phases of the moon. | Also the Mutsuki-class ships had only hull numbers at first due to the projected Eight-eight fleet plan, which proved to be unpopular with their crews due as they were a constant source of confusion in communications. Thus, they were given names at August 1928, taken from traditional poetic names of the months of the year by the Lunar calendar or phases of the moon. |