National Geographic : 1941 Nov
"You Just Dived 400 Feet into the Ground, Fella!" A Canadian rookie pilot in a dummy plane learns to fly blind without leaving the ground. When the head covering is closed down, hecannot see,butmust circle, dive, and bank with only the instruments to guide him. Every time he "maneuvers" his model plane, his actions are automatically recorded onthechart before theinstructor.