Civilian Ships were removed from the game in milestone 2.7. Previously they could be purchased from the Civilian Ship Deed Trader in every shop. They only had one durability point and were weaker than ships made by players.
As a replacement mechanic for civilian ships, each Fallback's durability has been reduced to one (with the exception of a player's first ship). This change ensures that each time a leveling player is sunk, they receive a level appropriate fallback as opposed to continuing on with their previous, inadequate ship.