 Complete the following phrase:  In 1777, he captained the 18-gun corvette Flèche. The year after, he transferred to the 26-gun frigate Aimable, part of the squadron under Vice-amiral dEstaing. He took part in the Battle of Rhode Island on 29 August 1778, in the Battle of St. Lucia on 15 December 1778, and in the 