Kaidai-class Submarine


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Ships in class: 33

The Kaidai type submarine was a type of 1st class submarine operated by the Imperial Japanese Navy (IJN) before and during World War II.

All Kaidai-class submarines originally had a two digit boat name, from I-51 onwards. On 20 May 1942, all Kaidai submarines added a '1' to their name. For example, I-52 became I-152.


  • Kaidai-class Submarine