Barely 40 years separate the Wright brothers' flight and those of the first jet aircraft. The World War II pilots who were the first to fly those jets and who would later become the first airline pilots, learned to fly in little cloth and wooden biplanes, the aircraft of the 1920s and 1930s. One such airplane was the Curtiss JN4 "Jenny," known as the "Model T of airplanes" because it was the first aircraft to be mass-produced. The Jenny was...