These clinics are three (3) days long. Learn how to instruct from the best. To become a Basic Instructor: A P1 is required to begin an apprenticeship with a PASA approved instructor. To obtain the basic instructor rating after apprenticeship: Intermediate or higher rating, plus a minimum of 200 flying days and 300 flights and completion of a reserve clinic and two additional clinics from the following list: Thermal/X-C, Ridge Soaring, Tandem, and Towing. To become a Tandem Instructor: Advanced rating, Turbulence sign-off, AND minimum 200 hours of logged air time OR 100 hours with 500 flights of at least 500 ft. vertical descent OR 100 hours with 500 flights of 2 minutes duration or longer.