On 11 January 1798, she was in company with and Childers when they captured the French privateer schooner Vengeur. Vengeur was a new vessel of 12 guns and 72 men. She was eight days out of Ostend but had taken no prizes. Pellew sent her into Falmouth. Five days later, in the evening of the 16th, Pellew's squadron captured the French privateer Inconcevable. She was armed with eight guns and had a crew of 55 men. She was 10 days out of Dunkirk and had taken nothing. Prize money was paid to Indefatigable, Cambrian, and . On 28 January, Indefatigable and Cambrian captured the privateer Heureuse Nouvelle. She was armed with 22 guns and had a crew of 130 men. She was 36 days out of Brest and, during that time, had captured only one ship, a large American vessel named the Providence which had a cargo of cotton and sugar. Pellew sent Cambrian in pursuit. Duke of York also shared in the capture. On 30 April 1798, Indefatigable captured the brigantine privateer Basque. She was armed with eight guns and had a crew of 50 men. Indefatigable and Cleopatra captured the Hope on 11 July. At daylight on 4 August, Indefatigable sighted the privateer Heureux together with a prize and gave chase. The two separated, with the prize heading directly for Bayonne. After a chase of 32 hours on a great circular route, Indefatigable and her quarry found themselves off Bayonne where Indefatigable intercepted the prize and captured her. The privateer was the Heureux, of 16 guns and 112 men. Her prize was the Canada, John Sewell Master, which had been sailing from Jamaica to London, having stopped in Charlestown, with a cargo of sugar, rum, and coffee. Pellew exchanged prisoners, taking off the crew of the Canada and putting on her the crew of Heureux. He then drove Canada on shore where he hoped that her cargo at least would be destroyed. Indefatigable captured the French corvette Vaillante while cruising in the Bay of Biscay on 8 August, after a chase of 24 hours, which was under the command of Lieutenant de Vaisseau La Porte. The corvette fired a few shots before she struck. She was armed with twenty-two 9-pounder guns and had a crew of 175 men. She had left Rochefort on 1 August, and the Île de Ré on the 4th, where she had picked up