Olympia: The Age of Gods PBEM (May 4 1999)
A newly-completed hull is merely the skeleton for a ship. While it can be slowly rowed from place to place, to be of any real use it will need to have sails or rowing ports added and possibly a keel, fortifications and a ram. Each of these features is added with a Shipcraft [120] subskill:
Add Sails [9614] Add Fortification [9615] Add Rowing Ports [9616] Add Keel [9617]
There are also corresponding skills to remove features:
Remove Sails [9618] Remove Fortification [9619] Remove Rowing Ports [9620] Remove Keel [9621]