The Fairchild PT-19 series of aircraft played a significant role in training pilots during World War II and beyond. The PT-19A model, powered by the 200 hp L-440-3 engine, was mass-produced with 3,181 units manufactured by Fairchild. Additional units were built by Aeronca and the St. Louis Aircraft Corporation, totaling 477 and 44 respectively. The subsequent PT-19B model, with 917 units produced, was specifically equipped for instrument flight training by adding a collapsible hood to the front cockpit.

Compared to earlier biplane trainers, the Fairchild PT-19 offered a more advanced aircraft design with increased speeds and wing loading closer to that of combat planes. Despite the demanding flight characteristics that required precision, the PT-19 was known for its cost-effectiveness, ease of maintenance, and overall reliability. This earned it the nickname "Cradle of Heroes" due to its role as a primary trainer for aspiring combat pilots. Thousands of PT-19 aircraft were swiftly integrated into training programs across the US and Commonwealth, serving a crucial function throughout World War II and continuing beyond the late 1940s. Many units from the PT-19 series eventually transitioned to the US civil register even after their military retirement.