Well that's dispensed with the aerodynamics then. Shall we now move on to dismiss principles of flight, legislation and airmanship with such gay abandon? It's rather a pity that flight instruction has become nothing more than a stepping stone to a prospective airline career. One can remember when instructors strove to be as excellent in their profession as possible, rather aspiring to a doctorate in the subject. Then the delivery of whatever matter was under discussion, either on the ground or in the air was tailored to the student's ability to receive and ingest information.