In an era of satellite-based precision approaches, a pilot’s understanding of how to find the destination airport using a nondirectional beacon might seem a waste of time. But in the United States, hundreds of NDBs remain in service, according to the FAA. Alaska alone has 70.
Chart Wise: Training and Technique
Key Takeaways:
- Nondirectional beacons (NDBs) remain in service as cost-effective IFR approach options, despite their rudimentary functionality and susceptibility to signal fluctuations.
- NDB approaches demand heightened pilot vigilance due to their basic nature, requiring continuous audio monitoring and often additional equipment like DME.
- Specific NDB approaches present critical operational restrictions and complexities, such as limitations on use (e.g., night, tower closure), non-standard Final Approach Fix (FAF) or Missed Approach Point (MAP) definitions, and high visibility minimums.
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