These are screenshots from my scenario called "Water World" available at the Ylands workshop. This is the MK III version of a Catamaran that I completed as part of the scenario in which there are no islands and you have to find a way to build an island. Technically it's a Trimaran but most people are familiar with the "Catamaran" so that's what I called it. There is no noticeable decrease in speed and plenty of room to store stuff, I'm only using a fraction of the space available. Give it a test drive or better yet, see if you can build a nice sustainable home made island with what little you have in the boat:   https://ylands.net/asset/142  I know everyone is focused on the ships, but I see a lot of potential for this boat. What do you think?