21. The sixth PT boat embarked HMAS " Kapunda " headed upriver. 22. The torpedo, the Navy added, was used " primarily aboard PT boats ." 23. He prepared an event to celebrate the christening of the first PT boat . 24. A navy minelayer led the PT boats through the protective minefield in single file. 25. Nishimura's ships passed unscathed through the gauntlet of PT boats . 26. Nearly 400 Elco PT boats were produced for the U . S . Navy. 27. Common to all US PT boats were the two twin 20 mm Oerlikon cannon. 28. Each PT boat would carry twenty 55-gallon drums of additional fuel on the deck. 29. MacArthur gave PT boat officers a high priority to be flown out from Mindanao. 30. When Nishimura advanced down the Surigao Strait, American PT boats sortied against his fleet.
