U.S. Patrol-Torpedo boat gunner ready for action. A U.S.

U.S. Patrol-Torpedo boat gunner ready for action. A U.S. Navy gunner sights twin .50-caliber machine guns aboard a PT (patrol-torpedo) boat hunting Japanes shipping in the South Pacific. PT boats are armed with torpedos as the pricipal offensive weapon, but they also carry depth chrages, .50-caliber machine guns, 20 mm. cannon and anti-aircraft guns. The boats attack at speeds in excesss of 60 miles an hour and have an impressive record of sinkings in forays against Japanese vessels during Allied operations in the Solomon Islands.