This months WoodenBoat Magazine has a good PT Boat Article.
WoodenBoat magazine No. 251 (July/August 2016) includes an article on PT-658, a 78′ Higgins motor torpedo boat built for the U.S. Navy during World War II. A group of PT Boat veterans banded together to restore her between 1995 and 2005, and the boat is now fully functional and afloat as a museum ship in Portland Oregon. Powered by three working 1,850-hp Packard V-12 gasoline engines, PT-658 is today the only fully operational World War II-era PT Boat.