Between 1768 and 1777, she made eight voyages in the triangular trade, transporting enslaved people from West Africa to the Caribbean.

In 1777 the British Royal Navy purchased her at Antigua, named her HMS Comet, and armed her as a sloop-of-war.

1st voyage transporting enslaved people (1768–1769): Captain Samuel Conway sailed from Liverpool on 31 May 1768, and returned on 17 March 1769.

[9] 5th voyage transporting enslaved people (1772–1773): Captain Conway sailed from Liverpool on 25 April 1772.

[10] 6th voyage transporting enslaved people (1773–1774): Captain John Washington sailed from Liverpool on 15 June 1773.

[11] 7th voyage transporting enslaved people (1773–1774): Captain Jere Limeburner sailed from Liverpool on 17 July 1774.

[2] 8th voyage transporting enslaved people (1776–1777): Captain John Simmons sailed from Liverpool on 12 June 1776.

[13] Vice-admiral James Young purchased the Guineaman Betsey at Antigua for £1500, and renamed her Comet.

[5] This article includes data released under a Creative Commons Attribution-ShareAlike 3.0 Unported UK: England & Wales Licence, by the National Maritime Museum, as part of the Warship Histories project.