As part of the First Chilean Navy Squadron she participated in 1818 in the defeat of a Spanish expeditionary force.

Captain William Ward Farrer sailed Cumberland for the Cape, Bengal, and China, leaving the Downs on 30 January 1803.

When the Napoleonic Wars broke out shortly after his departure, the EIC arranged for him to receive a letter of marque, which would authorise him to act offensively against French shipping, should the opportunity arise.

On 14 February a fleet of Indiamen under the command of Commodore Nathaniel Dance, which included Cumberland, intimidated, drove off, and chased a powerful French naval squadron.

Although the French force was much stronger than the British convoy, Dance's aggressive tactics persuaded Contre-Admiral Charles-Alexandre Durand Linois to retire after only a brief exchange of shot.

Dance then chased the French warships until his convoy was out of danger, whereupon he resumed his passage towards British India.

Cumberland reached Malacca on 18 February and Penang on 3 March, and St Helena on 10 June.

Lloyd's Patriotic Fund and other national and mercantile institutions made a series of awards of ceremonial swords, silver plate, and monetary gifts to individual officers.

[1] On 7 August 1805, HMS Blenheim, Captain Austin Bissell and Rear-Admiral Thomas Troubridge, was escorting a fleet of East Indiamen consisting of Castle Eden, Cumberland, Devonshire, Dorsetshire, Exeter, Ganges, Hope, and Preston.

Troubridge reprimanded the captains of Cumberland and Preston for having acted too boldly in exchanging fire with the French.

[5][6] Cumberland reached Madras on 23 August, Penang on 18 September, and Malacca on 22 October, arriving at Whampoa on 20 December.

She reached Bombay on 25 June, Penang on 31 August, and Macao on 18 October, arriving at Whampoa on 4 November.

On 25 October 1818 the First Chilean Navy Squadron, commanded by Manuel Blanco Encalada and comprising San Martín, Lautaro, and Chacabuco, defeated a Spanish expedition.

San Martín participated in the Freedom Expedition of Perú, which was under the command of Captain Lord Thomas Cochrane.