I'v seen and felt the shore batteries bite....it was a shocking surprise for sure.....and an excellent beginners story
It was a wet and stormy night as we patrolled outside of Bungo Suido. Finally,with nothing coming out of the Bungo, we headed in at 8-9knots, cause we saw occasional radar returns up inside.
Kinda figured they were fishing boats.....but we had plenty of time to egress back out in deep water by sunrise. The rain and wind helped the trip in,too.
Long story short, after sinking a small lonely tramper, then getting involved with chasing down one of many singles we had on radar, we found out our planned 12-14kt egress wasn't going to cut it, broke off the chase and started romping out of there out at 19-21kts
Obviously didn't need to charge the batteries
Passing the island guarding the entrance to the inner sanctum.....and damn if we weren't taking fire AND getting hit!! Still wet and windy---low viz, but I guess they could see our rooster tail
Sure didn't see those batteries on the way in. Alot of zig zagging and off course turns,we made it out ok
Spent extra time on the surface attending to some damage when we got out.
Later...found a small convoy to play with and got Dc'd pretty good. Found out shortly afterwards with another convoy encounter, that you don't stay at 300ft for very long with 48% hull damage. Didn't make it home
Its been an enlightening learning curve