The British captured her in 1797 and she became a West Indiaman, and from 1798 a slave ship in the triangular trade in enslaved people.

They sailed for a French port in the Caribbean but the Royal Navy retook her in 1801 and brought her into Barbados.

[1] 1st voyage transporting enslaved people (1798–1799): Captain Miles Booth acquired a letter of marque on 5 June 1798.

[4] 2nd voyage transporting enslaved people (1800–1801): Captain Adam Elliott acquired a letter of marque on 7 March 1800.

3rd voyage transporting enslaved people (1801): Captain William Beamish Lane had not acquired a letter of marque when he sailed from Liverpool on 6 August 1801.

[5] Lloyd's List reported in February 1802 that "Friendship, Lane, from Liverpool to Africa, had been taken by Part of the Crew and carried into Barbados.

He instructed the seamen to await his return but they sailed back to the ship after he had left them.

In Captain Lane's absence, and without waiting for instructions from London, the agent sold her entire cargo and stores.

This gave rise to sequence of cases and appeals in that although the purpose of the voyage had been frustrated, the vessel itself had reached port.

However, the term "Friendship, Ross" last appeared in Lloyd's List's ship arrival and departure data in January 1803.

Because Friendship was a common name for vessels, absent original research, as of January 2023 it has proven impossible to discover her subsequent disposition.