Aviation Dictionary

Simplified directional facility (SDF)

A NAVAID used for nonprecision instrument approaches. The final approach course is similar to that of an ILS localizer; however, the SDF course may be offset from the runway, generally not more than 3°, and the course m…

Dictionary Term

Simplified directional facility (SDF)

Definition

A NAVAID used for nonprecision instrument approaches. The final approach course is similar to that of an ILS localizer; however, the SDF course may be offset from the runway, generally not more than 3°, and the course may be wider than the localizer,

References

Pilot's Handbook of Aeronautical Knowledge · Federal Aviation Administration · 2023