Armament
Available supported armament and special-mission equipment featured in the design of Higgins PT Boat (Patrol Torpedo).
4 x 21-inch (533mm) torpedo tubes for 4 x Mark 8/13 torpedoes, launchers arranged as inline pairs along port and starboard sides.
1 x 37mm OR 40mm Dual-Purpose cannon fitted on forecastle.
1 x 20mm Oerlikon anti-aircraft cannon
4 x 0.50 caliber (12.7mm) anti-aircraft, air-cooled heavy machine guns in dual mounts (2x2), one emplacement amidships and one forward, offset to starboard.
Optional 0.30 caliber machine guns, mortar launchers, rocket projectors, and additional 20mm automatic cannons (and captured 23mm anti-tank guns) as required / available.