On 27 July 1917, he scored twice, driving down an Albatros D.V fighter on one patrol and sharing in the destruction of an Aviatik recon plane with Roger Neville on another.
During the war, the Imperial Army Air Service utilised a wide variety of aircraft, ranging from fighters (such as those manufactured by Albatros-Flugzeugwerke and Fokker), reconnaissance aircraft (Aviatik and DFW) and heavy bombers (Gothaer Waggonfabrik, better known simply as Gotha, and Zeppelin-Staaken) and airships of all types.
He scored his first aerial victory on 27 April 1916, forcing a German Aviatik two-seater reconnaissance plane to land at Herlies.