AhaBulb: Stuff Everyone Should Know · ahabulb.com/drone-obstacle-agl-in-parentheses
On a sectional, an obstacle shows 1549 with (1049) below it. What is the number in parentheses?
- Height above ground level
- Height above mean sea level
- Distance to the nearest airport
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References
- FAA Aeronautical Chart Users' Guide (VFR Terms and Symbols) aeronav.faa.gov/user_guide/cug-complete_20260709.pdf Checked 2026-10-07.
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