The term WWI Plane can be summarized as a SPAD, which is a French biplane fighter aircraft used during World War I. It was designed by Louis Bechereau and first flown in 1913. The SPAD was one of the most capable fighters of the war, and was widely used by the French Air Force. It was also used by the American Expeditionary Force and other Allied forces. The SPAD was known for its maneuverability and speed, and was used in many dogfights and aerial battles during the war.