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.
Ace, when used in the context of military propaganda, denotes a successful military professional who has accumulated a meaningfully measurable statistic such as aircraft shot down, tanks destroyed, tonnage sunk, or a number of successful sniper shots. In a manner analogous to sport statistics, some military roles can be measured in terms of a quantifiable metric. Once said metric is established, military personnel may be quantified versus the designated metric and compared in a tabular fashion. Such metrics may be used as a basis for military merit awards, such as Knight's Cross of the Iron Cross by setting an arbitrary threshold. Likewise, a designation of "ace" may be applied, such as 5 aircraft shot down.
The "first French ace", Frenchman Adolphe Pégoud being awarded the Croix de guerre. The term "ace" in relation to individual military success originated with French military propaganda of World War I.