AD reserved for radio-equipped avions. Possible IFR operations. ULM strip reserved for home-based. Simultaneous use of ULM strip and piste 12/30 prohibited. Air navigation hazards piste 30 strong down drafts when northerly winds. Procedures and special instructions Taxiing prohibited except on piste and voie de circulation. voie de circulation A width : 9.3 m. Avoid overflight of Truc de Balduc, out of respect for birds of prey. Special activities AEM (NR 9643) : HJ. 500 ft ASFC. Towing glider activity piste 12/30. Hot-air balloons activity.