Opposite to Patrician a captain does not require any trading experience to establish automatic trade routes. Nonetheless you should know the different experience fields a captain can be improved in.
Captains can gain experience in six different categories:
|Battle||increased damage in naval battles||won naval battles|
|Trade||shorter stopping times in harbours for automatic trade routes||trade (automatically or manually)|
|Combat||increase damage for boarding fights and town capture||won boarding fights|
|Navigation||increase sailing speed||travelling on the sea|
|Ship building||shorter repair times||repairing ships in the dockyard|
|Visibility||increased sight radius||using the patrol mode|
Every experience can get improved by visiting an instructor in the towns tavern all over the Caribbean Sea.