sentences:  He was also active in aerial engagements against Central aircraft during this period, achieving flying ace status early in the year.During a particular patrol with two other members of his squadron on 13 May, the trio intercepted a party of twelve enemy planes.In the ensuring battle, Howell "carried out a most dashing attack", being personally credited with the destruction of three of the aircraft and with driving a fourth down out of control, despite suffering "frequent jams in both of his machine guns".