What defines an Air Ace?

An Air Ace is specifically defined as a fighter pilot who has successfully shot down five or more enemy aircraft in aerial combat. This designation is historically significant, as it represents a level of skill and proficiency in air combat that is recognized in military history. The concept of the Air Ace emerged prominently during World War I and World War II, where aerial dogfights were a critical part of warfare, and achieving this milestone was a notable accomplishment that often led to recognition and honors.

The other options, while relating to aspects of aviation and military service, do not capture the essence of what constitutes an Air Ace. Leading a squadron, possessing exceptional technical skills, or having multiple service records are important qualities in military aviation but do not specifically define the status of being an Air Ace, which is strictly quantified by the number of enemy aircraft shot down.