AC 91-57, ADVISORY CIRCULAR: MODEL AIRCRAFT OPERATING STANDARDS (09 JUN 1981)

AC 91-57, ADVISORY CIRCULAR: MODEL AIRCRAFT OPERATING STANDARDS (09 JUN 1981)., This advisory circular outlines, and encourages voluntary compliance with safety standards for model aircraft operators. Modelers, generally, are concerned about safety and do exercise good judgement when flying model aircraft. However, model.aircraft can at times pose a hazard to full-scale aircraft in flight and to personsand property on the surface. Compliance with the following standards will help reduce the potential for that hazard and create a good neighbor environment with affected communities and airspace users.