nonessential information to reduce frequency congestion. pilots of radar-identified aircraft whose aircraft is in dangerous proximity to terrain or to an obstruction. non control information in selected high-activity terminal areas.
The flag indicates that there will be a large obstruction depicted on ...
a nonpublic-use airport. an airport restricted to use by private and recreational pilots. a restricted ...
Airports with control towers underlying Class C, D, and E airspace are shown in magenta. Airports with control towers underlying Class B, C, D, and E airspace are shown in blue. Airports with control towers underlying Class A, B, and ...