This command will create a naval fleet with up to 100% of your naval capacity ('create_navy 0.5' for 100%). The designs used are all of your latest.
create_navy [percentage]
| Percentage | The percentage of naval capacity you wish to occupy with your new fleet - 0.5 is 100%, 0.25 is 50%, etc. |
create_navy 0.5
This command will create a naval fleet with 100% of your naval capacity.
create_navy 0.25
This command will create a naval fleet with 50% of your naval capacity.