|2ndShip=[[Akitsushima Kai]]<br/>[[Ooshio Kai Ni]]<br/>[[Arashio Kai Ni]]
|2ndShip=[[Akitsushima Kai]]<br/>[[Ooshio Kai Ni]]<br/>[[Arashio Kai Ni]]
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|Notes = Uses [[Drum Canister]] for improvement up to ★+6 <br> Uses [[12cm 30-tube Rocket Launcher]] for improvement past ★+6 <br> Uses 1{{PAGENAME}} and 2x [[New Model Rocket Development Material]] for upgrade to [[Type 4 20cm Anti-ground Rocket Launcher (Concentrated Deployment)]].
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|Notes = Uses 1x [[Drum Canister]] for improvement up to ★+6 <br> Uses 1x [[12cm 30-tube Rocket Launcher]] for improvement past ★+6 <br> Uses 1x {{PAGENAME}} and 2x [[New Model Rocket Development Material]] for upgrade to [[Type 4 20cm Anti-ground Rocket Launcher (Concentrated Deployment)]].