[3] Under the command of Archibald Armstrong, master, Atlantic departed Portsmouth on 27 March 1791 as part of the third fleet, and arrived on 20 August 1791 in Port Jackson, New South Wales.

[8] She then made a return voyage to Norfolk Island, arriving back in Port Jackson on 30 Sep 1792.

She was carrying the retiring governor Arthur Phillip, accompanied by the Aboriginal Australians Bennelong and his friend Yemmerrawanne.

Also on board were the last of the First Fleet New South Wales Marine Corps detachment, including diarist John Easty.

In 1795 Thomas Probeart was Atlantic's captain, and her occupation was listed as a transport sailing out of London.

War with France had commenced in 1793, and during her employment with the EIC and subsequently she sailed under a letter of marque, which gave her the right to act offensively against the French, should the opportunity arise, and not just defensively.

[2] Captain Probert [sic], sailed past Dungeness on 5 February 1797, bound for Madras, Penang, and Bengal.

[16] After the outbreak of the Napoleonic Wars, Sampson Baker became Atlantic's captain; he received a letter of marque on 8 June 1803.