I have an old "Flight Instructors Handbook" published by the DCA.
DCA in the Sixties employed a significant number of former RAAF pilots as Examiners of Airmen. The DCA Flight Instructors Handbook was largely based upon RAAF Central Flying School teachings. Rather like Mac Job's Aviation Safety Digest magazine, the DCA Flight Instructors Handbook was concise and eminently readable. The authors of the Bible length Part 61 please note.
