In Lee Arbon's book about enlisted pilots, "They Also Flew," Chief Master Sgt. Wayne Fisk compared pilots to precious stones, with the shiniest of all U.S. aviation achievements being those of the sergeant pilot. Allowing enlisted airmen to earn their wings as pilots was a temporary response to drastic shortages of qualified pilot candidates during wartime. Two Congressional laws authorized the training: the Air Corps Act of 1926 and Public Law 99, which went into effect in 1941. Public Law 99 reduced the education requirement, making the average age of the sergeant pilot between 18 and 22, younger than most pilot training cadets with a college education. Enlisted pilot training in the late 1920s initially was informal, practical in nature and not a product of the flying schools, which developed in the early 1940s with World War II enlisted pilots. Instead, Arbon said, "If fortunate enough, these early, World War I enlisted pilots grew up in the local organization learning under a generous officer in their unit. For the initial enlisted pilots, the World War I generation, many came out of the ranks of mechanics to become successful pilots."
An enlisted man's opportunity to train to fly was many times luck of the draw, Arbon said. Such was the case in 1912 for Cpl. Vernon Burge, the first enlisted pilot, who was a mechanic accepted into pilot training. Arbon who attended pilot training in 1942, recalled, "Training conditions were fiercely competitive, attrition was very high, half of us were cut after the medical physical, and only one forth made it out of training." Enlisted pilot candidates trained six days a week in class or in the air and spent Sundays doing drill, Wenglar said. One of his strongest memories was training in the hot July sunshine in Arizona with temperatures in the hundreds, which made the flight line surface even hotter. "While waiting your turn to fly, the instructors would order us to complete one push-up after another, our hands burning," he said. "When we couldn't do any more push-ups, the instructors would make us (get on our backs and) hold our feet up six inches from the ground. Looking back, it's amazing we got through. They worked hard to wash us out, especially considering they needed us so badly."