32′ x 6’9" steel canal tug: we have drawn up the steel construction details (hull, deck, sterngear and rudder details only) for this 32’ canal boat based. A scow, in the original sense, is a flat-bottomed boat with a blunt bow, often used to haul bulk freight; cf. barge. the etymology of the word is from the dutch. A pt boat (short for patrol torpedo boat) was a torpedo-armed fast attack craft used by the united states navy in world war ii. it was small, fast, and inexpensive to.