AC 90-89B, ADVISORY CIRCULAR: AMATEUR-BUILT AIRCRAFT AND ULTRALIGHT FLIGHT TESTING HANDBOOK (27-APR-2015)

AC 90-89B, ADVISORY CIRCULAR: AMATEUR-BUILT AIRCRAFT AND ULTRALIGHT FLIGHT TESTING HANDBOOK (27-APR-2015)., This advisory circular (AC) sets forth suggestions and safety related recommendations to assist amateur and ultralight builders in developing individualized aircraft flight test plans.