On 7 August, a British brig and a cutter anchored off Boulogne; and the next day, Dornal de Guy received the order from Bruix to attack the ships with five boats.
Along with the brig Cygne under Menouvrier Defresne, Manche had several encounters with HMS Uranie, under Captain Christopher Laroche.
[3] In 1809, Manche was dispatched from Cherbourg to Port-Louis at Ile de France to replace the aging Sémillante, which had been decommissioned and sold to Robert Surcouf.
De Guy arrived on 6 March, and after a one-month leave, Manche undertook her first cruise in the Mozambique Channel.
After the capture of Jacques Hamelin at the action of 18 September 1810, Dornal de Guy became the senior naval officer of the French forces in the Indian Ocean.