, , , and "Pitt" were anchored in the harbour of Buenos Aires on 25 May 1810 during May Week, when the revolution broke out in the city. Captain Fabian of "Mutine" broke out bunting and the British vessels saluted the revolution with salvos of cannon. Fabian also gave a rousing speech on liberty and revolution, praising the revolutionaries for having gained their freedom. One source gives the name of "Pitt"s commander as Lieutenant Thomas P. Perkins, but a newspaper account for March 1811 gives it as Lieutenant W. Perkins. On 28 May "Pitt" sailed to Rio de Janeiro with the news of the uprising. "Mutine" sailed for Britain with the same news on 3 June.