The Harushio is termed a 3rd generation submarine, and makes use of complete dual shell system and a tear autumn kind hull. The silhouette resembles the Yushio kind, but there is nevertheless a projection part of the countermeasure cleverness sonar in which it differs in the look expanding towards bow top which makes it is achievable to differentiate them. The hull finished up being extended about 1 meter all together size attendant upon within warship area enhancement when compared to the Yushio type. It is theoretically generated by the earlier Yushio system, but calm running attribute are strengthened and there are several improvements in underwater capability.