Steamboat
Similar boats were made in 1785 by John Fitch in Philadelphia and William Symington in Dumfries, Scotland. Fitch successfully trialled his boat in 1787, and in 1788, he began operating a regular commercial service along the Delaware River between Philadelphia and Burlington, New Jersey, carrying as many as 30 passengers. This boat could typically make and travelled more than during its short length of service. The Fitch steamboat was not a commercial success, as this travel route was adequately covered by relatively good wagon roads. The following year, a second boat made excursions, and in 1790, a third boat ran a series of trials on the Delaware River before patent disputes dissuaded Fitch from continuing.
Dumfries
After working with Patrick Miller of Dalswinton, inventor William Symington intended to carry out a trial in order to show than an engine would work on a boat without the boat catching fire. The trial finally took place on Dalswinton Loch near Dumfries on 14 October 1788. The experiment demonstrated that a steam engine would work on a boat. Symington went on to become the builder of the first practical steamboat.