To operate under IFR below 18,000 feet, a pilot must file an IFR flight plan and Mechanical Engineering receive an appropriate ATC clearance prior.
Whenever a pilot wants to fly under controlled airspace under IFR, flight planning is required, whether before departure or before entering controlled airspace. IFR flight plans must be submitted at least 30 minutes before departure.
In the United States, to file and fly under IFR, pilots must obtain instrument rating and track using instrument approach, waiting procedures, course intercepts, and sea marks within the last 6 months 6 Must be flying once.
IFR operations in all classes of controlled airspace require pilots to submit an IFR flight plan and obtain appropriate ATC clearance. IFR separation. All aircraft operating under IFR in controlled airspace are provided with standard IFR separation.
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