Light Blue = Class D controlled airspace This is indicated on the map by the light blue shaded circle surrounding the airport. To operate a drone anywhere in this airspace, you will need an FAA airspace authorization and may be limited to altitudes less than 400ft AGL.

On a standard FAA sectional aeronautical chart, the meaning of blue shading depends on the specific line style used. Class B Airspace, which surrounds the nation’s busiest airports, is depicted by solid blue lines that form an "upside-down wedding cake" structure of concentric circles with varying altitude floors. Conversely, Class D Airspace, typically found around medium-sized airports with operational control towers, is shown as a dashed blue line. Additionally, blue-tinted vignettes (faded edges) are used to indicate the boundaries of Class E Airspace when it begins at an altitude other than the standard 1,200 feet AGL. Understanding these distinctions is critical for pilots, as each class carries different requirements for two-way radio communication, transponder equipment, and specific air traffic control clearances before entry.