This is a copy of City of Abandoned Ships, so not really a mod. But it does contain many fixes for bugs we've discovered. I did not know there is anything wrong with the sails for the Flying Dutchman, can you describe what the problem is?
In the original game the sails of flying ducthman are very low hp after some hits they fall (google translate)
I did not know the original game had this problem. I can copy the sail mast damage from ERAS to see if that helps.
