Capture
On 3 August 1805, Calcutta, still under the command of Captain Woodriff, left Saint Helena as escort of a motley convoy to England. The convoy consisted of the East India company's "extra-ship" Indus, from Madras, the southern whaler African from Desolation, the whaler Fox from the Mozambique channel, the whaler Grand Sachem from the Peruvian coast and bound to Milford, the Prussian ship Wilhelmina (or Anna Wilhelmina), which Calcutta had detained on her way out to Saint Helena, and the large Swedish ship Carolina, which was sailing from China and asked to join.[16]
On 14 September 1805, the brig Brothers, of London, from Tobago, joined the convoy. She had gotten separated from her convoy in a gale. Unfortunately, she was leaky and a very slow sailer.[16]
On 25 September 1805, the convoy was in the Channel south of the Isles of Scilly when lookouts spotted a number of unknown vessels in the distance. Calcutta moved to position herself between the convoy and the unknown flotilla.
Next morning, it became clear that the unknown vessels were probably French so Calcutta signalled the convoy to make sail without her and moved to intercept the French vessels. She sailed towards the nearest vessel, which turned out to be the 40-gun frigate FRENCH FRIGATE Armide. The engagement was desultory but Calcutta succeeded in luring the French southward and away from the convoy. As a result, the French detached the brig Sylph which captured only the slow-sailing Brothers.[16]
However, eventually the rest of the French squadron started to arrive. It turned out to be Allemand's squadron, which included the 74-gun FRENCH SHIP Magnanime. Woodriff brought Calcutta alongside Magnanime, but after a battle of some three-quarters of an hour was forced to strike. The French had shot high, bringing down Calcutta's rigging, disabling her. Because the French fired high, Calcutta suffered only six dead and six wounded out of a crew of 350.[17] The French brought Calcutta into French service the next day and retained her name.
Woodriff was imprisoned at Verdun and appealed to the French foreign minister, Talleyrand, for release. Eventually, in early 1807, he was sent to Saint-Malo, where the French government provided him a vessel under cartel to take him to England. The British government immediately reciprocated by releasing a French officer of equal rank.[18] The court-martial on HMS Gladiator (1783), on 1 January 1808, acquitted Woodriff and his officers, praising the captain for his gallantry and skillful maneuvering, which had allowed the convoy to escape.
The owners and underwriters on the ship and cargo of the Indus, one of the East Indiamen that Calcutta had saved, proposed a subscription of 21 per cent on the amount insured. The resulting money was to be presented to Woodriffe, his officers and the crew, as a small token of gratitude.[19]
French service
On 12 April 1809, Calcutta was part of the squadron of La Rochelle under captain Jean Baptiste Lafon. During the Battle of the Basque Roads, Calcutta ran aground on the shoals of Les Palles, as did most of the other French ships. Under fire from Imperieuse under Captain Lord Cochrane, Calcutta's crew panicked and abandoned ship without orders. A midshipman with a small party from Imperieuse took over Calcutta, but then set her afire to prevent her re-capture, causing her to explode.[20]
A court-martial held Lafon responsible for the loss of his ship, and deemed his behaviour to have been cowardly. In a five to four vote, the court sentenced him to death; a firing squad executed him on the deck of FRENCH SHIP Océan on 9 September.[20]