How is Class D airspace depicted on sectional charts?

Class D airspace is depicted on sectional charts with a dashed blue line. This representation indicates the boundaries of this type of airspace, which typically surrounds airports with control towers. The dashed line format helps differentiate Class D airspace from other classes of airspace, making it easier for pilots to recognize where they are operating and what airspace restrictions or requirements may be in effect.

In contrast, solid blue is used to indicate Class B airspace, while solid magenta is used for Class C airspace. Dashed magenta does not represent any controlled airspace but instead designates other airspace types, such as rural area requirements or navigable waters. Understanding these visual cues is essential for safe navigation.