What do the colors on a sectional chart represent?

Sectional charts are essential tools for pilots, providing a visual representation of airspace structure and geographic features. The colors used on these charts convey critical information about different types of airspace, terrain, and navigational aids. For example, specific colors signify controlled airspace boundaries, while others delineate uncontrolled airspace, indicating where pilots may or may not need to communicate with air traffic control.

Additionally, the chart illustrates different types of terrain, such as mountains, valleys, and bodies of water, often using color gradients and shading to indicate elevation changes. These visual cues help pilots assess the geography they might encounter during flight. The chart also marks various navigational aids like VOR stations and airports, often with distinct colors or symbols to make them easily identifiable. This comprehensive use of color on sectional charts is vital for pilot situational awareness and navigation, ensuring they have the necessary information to make informed decisions during a flight.