[4] Dart entered Lloyd's Register (LR) in 1807 with R. Smith, master, Howlett, owner, and trade London-South Seas.

[2] LR for 1810 showed J. Wilkins replacing R. Smith as master, and Dart's trade or voyage changing from London-New Orleans to "Africa".

[7] During her time off Sierra Leone Dart detained five slave trading vessels, all of which she sent into Freetown where the Vice admiralty court condemned them.

Although Mariana, Santo Antonio Almos, and Flor Deoclerim were Portuguese vessels, on 19 February 1810, under diplomatic pressure, Portugal signed a treaty of friendship and alliance that allowed British ships to police Portuguese shipping, meaning Portugal could only trade in slaves from its own African possessions.

However, in April 1813, Lloyd's List reported that "The Dart, Crossett, from Buenos Ayres to London", had been condemned at Pernambuco as unseaworthy.