The Airco DH.3 was a British bomber aircraft of the First World War. The DH.3 was designed in 1916 as a long range day bomber by Geoffrey de Havilland, Chief Designer at the Aircraft Manufacturing Company. It was a large biplane with wide-span three-bay wings, slender fuselage, and a curved rudder. It was powered by two 120 hp (89 kW) Beardmore engines, mounted as pushers between the wings. In addition to tailskid landing gear, two wheels were placed beneath the nose to prevent bumping.