After less than three years as a revenue cutter, she was sold in 1867 due to dissatisfaction with her machinery, and earmarked for merchant service in China.
[1] Her two-cylinder oscillating engine, built by New York's Novelty Iron Works, drove a single 8-foot (2.4 m) diameter screw propeller.
[1] Soon after completion, Pawtuxet was despatched to Boston, Massachusetts, arriving 29 September 1864, the same day as her sister ship USRC Mahoning, against whom it was reported she would be tested in trials.
The collision turned the schooner on her beam ends, but with a cargo of cotton, the vessel did not sink and was prepared for towing to the city.
On the 8th, the Association organized a harbor excursion for its members on the steamers Rose Standish and Russia, which was attended by the Mayor, the Chief of Police, and other Boston dignitaries.