Aeronautical Charts for Visual Flight Rules (VFR) and Instrument Flight Rules (IFR)
VFR aeronautical charts are used under visual flight rules, where a pilot operates the aircraft on favorable weather conditions. The visual flight rules allow a pilot to refer the chart and navigate the aircraft by looking outside the cockpit. Using the VFR chart, the pilot can comprehend local topography and use the legend to understand towns, roads, restricted areas as well as other important aeronautical details.
Based on the scale, VFR charts are divided into different categories. These important aeronautical charts serve as important maps for airplane pilots and include:
Sectional Charts: these charts have a scale of 1:500,000 or 1 inch equal to 7 nautical miles.
VFR Terminal Area Charts: designed with a scale of 1:250,000 or 1 inch equals 250,000 inches. The chart is designed for the area of a large airport and portrays flight routes within the vicinities of congested airspace.
World Aeronautical Charts: WACs are designed for large areas and have a scale of 1:1,000,000.
IFR aeronautical charts are used by pilots who cannot see outside the cockpit due to bad weather conditions. The pilots refer to artificial navigation aids to help navigate an aircraft safely. An IFR aeronautical chart boasts comprehensive details regarding waypoints (location fix), and the routes that connect these location fix. However, an IFR chart does not contain detailed information on the topography.