...However, after thinking about it, if I remember correctly, Dominatrix, you are on Macintosh, which means that you do not have an editor. I am on Macs, but broke down and got a Windows box to use for editing Civ3Complete, which also means that I had to by the Windows version as well.
The US Navy ship designator for Battleship is BB, the rest of the common ship designators are as follows. Aircraft carrier = CV, CVN if nuclear-powered, Heavy Cruiser = CA (comes from the earlier Armored Cruiser), Light Cruiser = CL, Guided Missile Cruiser = CG, CGN if nuclear-powered,
DD = Destroyer, DDG if equipped with guided missiles, SS = submarine,
SSN = nuclear submarine (normal an attack sub), SSBN =nuclear ballistic missile submarine, FF = frigate, FFG = guided missile frigate. CVL was used for the light carriers in WW2 converted from light cruiser hulls, and is sometimes used for smaller foriegn carriers. CVE was used for the WW2 escort carriers, based on merchant ship or tanker hulls, and mainly used for Anti-Submarine Warfare, ASW.
Sometimes you will see the big US carriers labeled as CVA, indicating an Attack Carrier, intended for ship and land attack missions, compared to an ASW carrier, which carries an air complement optimized for anti-submarine work.