Talk:Type 93 Passive Sonar/@comment-26192254-20170206024018/@comment-26464279-20170206025715

1. Make sure to check the Akashi improvement page

2. Make sure to select a girl that improves it into a Type 4 Sonar.

3. In case of Isuzu make sure to not improve on Mondays when she is a helper ship for improvement into Type 3 but on Thursday or Friday when she improves into Type 4 Sonar.

4. Profit