Albert H. Luke (AP Photo)

Albert H. Luke, center, instructor at the Sheil School, advises a student as she operates the controls of pre-flight trainer called the "Penguin" in Chicago, Ill., July, 25, 1945. The penguin gives flight students the basic "feel" of flying without leaving the ground. Luke says that a student is often able to take off in a real plane after finishing the pre-flight penguin training. (AP Photo)