Aerial victory standards of World War I
During World War I, the national air services involved developed their own methods of assessing and assigning credit for aerial victories.
René Fonck, the highest scoring ace to survive the war, standing beside his Spad XIII
A flying ace, fighter ace or air ace is a military aviator credited with shooting down five or more enemy aircraft during aerial combat. The exact number of aerial victories required to officially qualify as an ace is varied, but is usually considered to be five or more.
The "first French ace", Frenchman Adolphe Pégoud being awarded the Croix de guerre.
Manfred von Richthofen, known as the "Red Baron", scored the most officially accepted kills (80) in World War I and is arguably the most famous flying ace of all time.
French Colonel Rene Fonck, to this day the highest-scoring Allied flying ace with 75 victories.
Erich Hartmann, with 352 official kills the highest scoring fighter pilot of all time.