This is my boat. May not look tuff but look at its stats.
Able to beat aircraft carrier Lv 2 without losing bearly any health and can sit in the water forever before showing any sights of damage from planes.
So yes as u see it can take so much damage but there are some things u need to know and it's not just about adding a few of those huge ass big 400mm blocks. No. First you will need to know a few things and why!!
1. Always use lightweight armor and if not. As much as u can with out use of hull or regular armor.
2. DONT BE CHEAP !!!!! Because its more expensive it's worth it. And will pay off in the long run.
3. You will need a good base and make sure your ship is always balanced or else not only will it affect your speed. But will also affect how easily u overturn'!!!!!! Because it will make it easier to flip your sorry off balanced ass over !!!
4. Protect your engines- without your engines your a sitting duck so please take care of them.
Alright now like I said use those really big blocks the 400mm armor ones and the other large 400mm armor
Because as you can see. Hull has the lowest toughness and will cut your whole toughness rating in half.
The reason to why I say use the lightweight armor is because they are well light and u can make your whole boat out of them and remain at a 0.4 weight. While with the regular 600mm armor you will have yes. Armor. But after so many. U will find it slowing you down, and you will see your ship weight increase drastically. HOPE THIS HELPS!!!