The action of 15 July 1805 was a small naval action that took place off Chausey, on the coast of Normandy, involving two British gun-brigs on one side, and vessels on the other. The becalmed gun-brigs became easy targets for the oar-powered gunboats, which were able to manoeuver as to overpower them and force their surrender. Also, the French vessels were armed with guns, which outranged the carronades that constituted the bulk of the British gunboat's armament.