In the United States today, just four combat-veteran PT boats remain. Two of these are on display in museums, while the other two are berthed at various stateside ports where they serve as training vessels or museum ships. Here is a list of all current and former U.S. Navy vessels named after John Paul Jones: Current vessels: The first two boats built by Bollinger Shipyards for the U.S. Navy were designated "PT" because no official name had been assigned to them yet. They were launched in 1943 and 1944 and served with distinction during World War II. One of these boats, now known as the "Wartime Museum Boat," is preserved at the Wartime Museum at Gulfport, Mississippi. The other boat was sunk as a target in 1972. The last three vessels listed here were all originally constructed by Consolidated Steel Corporation for the Soviet Navy. They were commissioned between 1985 and 1990. All three currently serve in the Russian Pacific Fleet.