Built with higher stall speed and wing loading, the Fairchild PT19 was used by the United States Army Air Force to replace the Stearman PT-17 biplane as a primary trainer aircraft. This decision was made because the student pilots lacked confidence to make adjustments on the more complex monoplanes after the biplane mastery. USAF initially ordered 270 units of the Fairchild PT-19 Cornell and later made larger orders, but this time with engines that are more powerful. The aircraft was designed with two open cockpits and equipped with a 107-horsepower Ranger L-440 engine. More than 3,700 trainer units were built, but production slowed to a halt due to engine shortage. This led to the manufacturing of the enclosed-cockpit variety PT-26, which was used by the Royal Canadian Air Force. Some of the surviving PT-19s are still airworthy until today. Stationed in museums and air force bases, these aircraft are accessible to the public for viewing.