FAA Instrument Rating Airplane (IRA)IFR Procedures and ChartsEasy
A pilot is planning an IFR flight from a non-towered airport. To obtain an IFR clearance without contacting ATC via radio after takeoff, what is the most common and recommended method?
- ADepart VFR and pick up the IFR clearance once airborne and clear of clouds.
- BRequest the clearance via telephone prior to taxiing.
- CAttempt to contact ATC on the CTAF frequency after takeoff.
- DUse a remote communications outlet (RCO) if available.
Show answer & explanationAnswer & explanation
Correct answer: B. Request the clearance via telephone prior to taxiing.
For IFR flights departing non-towered airports, the most common and recommended method to obtain a clearance is to contact ATC by telephone (or Flight Service Station via telephone) prior to engine start or taxiing. This allows the pilot to receive and copy the full clearance before moving the aircraft.
Why the other options are wrong
- A. Departing VFR and picking up IFR clearance airborne is possible but less preferred, especially if IMC conditions exist at the airport, and creates additional workload.
- C. Contacting ATC on CTAF after takeoff is generally not reliable for IFR clearances and can be difficult in busy airspace.
- D. While an RCO can be used, telephone contact is more universally available and ensures a clear communication link before moving the aircraft.
Obtaining IFR Clearance from Non-Towered Airport
Pilots departing IFR from non-towered airports must obtain their IFR clearance before takeoff, typically by contacting ATC via telephone or a Remote Communications Outlet (RCO).
- Clearance must be obtained prior to takeoff in IMC.
- Telephone is the most common method (Flight Service or ATC).
- Remote Communications Outlets (RCOs) or Ground Communication Outlets (GCOs) can also be used.
Memory trick: Phone first, fly second, for a non-towered IFR start.