In 1780, Knight returned to the Americas again aboard HMS "Barfleur" and participated in the Battle of Fort Royal and the Battle of the Chesapeake, briefly becoming post captain in command of HMS "Shrewsbury" in 1782 before returning to "Barfleur" as captain and fighting at the Battle of St. Kitts and the Battle of the Saintes. He was responsible for the final blows and surrender of the French flagship "Ville de Paris" on 12 April 1782.