Surveillante was laid down in August 1777 in Lorient as the second frigate of the Iphigénie class, a series of 32-gun frigates carrying 12-pounders designed by Léon Guignace. She was launched on 26 March 1778, and commissioned in May. The very same month, she was refitted as to upgrade her hull with copper sheathing, which was being gradually introduced in the French Navy. In June 1778, Surveillante was part of a squadron of five French frigates that were seeking to retaliate against the British for their capture of three French vessels earlier that month, all before any declaration of war. On 24 June, off Ushant, the French encountered HMS Folkestone (or Folkestone), an 8-gun cutter. Folkestone then surrendered to Surveillante. The French took Folkestone into service under her existing na