Dart was launched in South America under a different name. She was taken in prize circa 1806. Once under British ownership she performed one voyage as a whaler in the southern whale fishery. She then traded as a merchantman before in 1810 receiving a letter of marque. As a privateer she did something quite unusual: she made a voyage to Africa where she captured five slave ships. After this Dart returned to normal trading, this time with South America. In 1813 as she was returning to London from Buenos Aires she stopped at Pernambuco, where she was condemned as unseaworthy.