National Geographic : 1943 Nov
© National Geographic Society .Kocacnrome, u. S.iNavy, umcial When Students Take the Controls of These Safe Trainers, Experienced Pilots Call Them "Yellow Perils" It takes 18 months to train a pilot. After ground school, the cadet is given elementary flight training by the Civil Aeronautics Authority. He then goes to"Pre-Flight" for toughening, followed by his first military flying at "Primary." Next, he moves to "Intermediate" for specialized instruction; thence to"Operational" forpolishing.