74-guns. She was commanded by Captain Austen Bissell and flew the flag of Rear-Admiral Sir Thomas Troubridge, a prominent officer who had been sent to the Indian Ocean to assume command of half of Pellew's responsibilities after a political compromise at the Admiralty. Troubridge's flagship was the convoy's only escort, leading ten East Indiamen through the Indian Ocean to Madras. As at Pulo Aura, the Indiamen formed line in preparation for Linois's attack, and once again Linois refused to engage them directly: Blenheim was a powerful ship capable of inflicting fatal damage on Marengo even if the French managed to defeat her, an uncertain outcome given the presence of the heavily armed merchant ships. Instead, Linois swung in behind the convoy, hoping to cut off a straggler. These manoeuveres were too complex for the poorly manned Brunswick, and she fell out of the French formation and was soon left behind, disappearing over the horizon. At 17:30, Marengo pulled within range of the rearmost East Indiaman and opened a long-range fire, joined by Belle Poule. The rear ship Cumberland, a veteran of the Battle of Pulo Aura, was unintimidated and returned fire as Blenheim held position so that the convoy passed ahead and the French ships rapidly came up with her. Opening a heavy fire with the main deck guns, Troubridge was able to drive the French ships off, even though his lower deck guns were out of service due to the heavy seas that threatened to flood through the lower gunports. Linois, concerned for the safety of his masts, pressed on all sail and by 18:00 had gone beyond range of Blenheim's guns and overtaken the convoy, remaining within sight until nightfall. At midnight, the French ships crossed the bows of the convoy and by morning were to windward, to the south. Troubridge maintained his line throughout the night and at 07:00 on 7 August 1805 he prepared to receive the French again as Linois bore down on the convoy. Retaining their formation, the combined batteries of the Indiamen and Blenheim dissuaded Linois from the pressing the attack and he veered off at distance, holding position for the rest of the day before turning southwards at 21:00 and disappearing. Troubridge wanted to pursue in Blenheim, but was dissuaded by the presence of Belle Poule, which could attack the convoy while the ships of the line were engaged. He expressed confidence