In the Wing Commander universe, the battlefleets of the Terran Confederation and Empire of Kilrah maintain a number of powerful battleships, most of which are destroyed at the Battle of Mc Auliffe. None of these ships are given classes.
Metal strips that are used to fasten electrical switches and receptacles in old work where there is no other hardware to keep the box from falling out of the wall. Battleships are technically known as Madison clips but have a profile that resembles a battleship.