Creating custom ship plans

[dsilva44]

I'm planing to create custom nations, and I wanted to be able to add ship templates for an auto-generated fleet, but I'm unsure how to create those templates. Does anyone have experience with making new templates the game will use when creating your pre-existing fleet?

[hipper]

The game uses the ship designs in the ./data/IDes folder. Designs are named to a schema where the first Letters designate the class, the number after the time period(counted from the beginning in five year steps,0 means 1900 and Legacy Fleet Builds, 1 1900 to 1905, 2 1905 to 1910 and so on), then the Nation(X for generic, G for German, F for French etc) and the last number the variant (from 0 to 8, so you can have 9 different templates for a ship class in acertain time period). You can design new templates in the ship editor, rename them according to above and put them in your IDes folder.
I dont have much experience with new nations, but you would probably need to match the nation letter to your newly created Nation.