Kaibokan is a suicide-torpedo, Kaiten carrier. The IJN planned to build 20 steel ships (Type Ko) which transport 2 Kaiten and 60 wooden ships (Type Otsu) which transport 1 Kaiten to bases. If an opportunity offers, they would be used for raids to the enemy landing convoys. When they did not carry Kaiten, they would be used as anti-submarine escorts. None of them was completed by the end of the war.
Data of Kaibotei
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History of Kaibotei
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