What configuration illustrates Class B airspace on sectional charts?

Class B airspace is depicted on sectional charts with a solid blue line. This type of airspace surrounds major airports with high traffic volumes and typically extends from the surface up to a defined altitude. The solid blue indicates that there are specific regulations and requirements for pilots operating in and around this airspace, including the need for communication with Air Traffic Control and certain aircraft performance criteria. The solid blue line helps pilots easily identify where these rules apply, ensuring they can navigate safely and comply with airspace requirements when approaching or departing from busy airports.

Other colors and line types on sectional charts represent different classes of airspace. For example, magenta typically represents a Class D airspace with dashed lines indicating a different set of regulations, while feathered magenta might depict Class E airspace. Understanding these distinctions is crucial for pilots and air traffic controllers to ensure safe and efficient operations in the national airspace system.