Changes
→Construction Time
| style="text-align: center;" |03:00:00
| style="text-align: center;" |03:00:00
|[[Hiyou]], [[Junyou]]
|[[Hiyou]], [[Junyou]]
|-
| style="text-align: center;" |03:20:00
|Aviation Submarine
|[[I-401]]
|-
|-
| style="text-align: center;" |04:00:00
| style="text-align: center;" |04:00:00