Purdue Professor Everett Lowell Kelly knew how to fly and how to teach (clinical psychology). He also knew that not every good flyer is a good flight instructor. This knowledge served him well when the Civil Aeronautics Administration asked him to direct a project for working out a better technique for basic flight instruction.
Practical-minded Professor Kelly began on the ground. He used an electrical inter phone and radio transmitter to listen to scores of teacher-pupil conversations in the air. He analyzed the results and found no instruction "which might be said to...