However, the term most commonly describes the kind of craft propelled by the turning of steam-driven paddle wheels and often found on rivers in the United States in the 19 th century.
Retrieved 2 February 2011.
Stevens' ship was engineered as a twin-screw-driven steamboat in juxtaposition to Clermont 's Boulton and Watt engine.
Under favorable winds the sails alone were able to provide a speed of at least four knots.