Aeronautical Charts  Sectional Charts  VFR Terminal Area Charts  World Aeronautical Charts  The charts provide an abundance of information, including  airport data, navigational aids, airspace, and topography.  Figure 16-1  is an excerpt from the legend of a sectional  chart. By referring to the chart legend, a pilot can interpret  most of the information on the chart. A pilot should also  check the chart for other legend information, which includes  air traffic control (ATC) frequencies and information on  airspace. These charts are revised semiannually except for  some areas outside the conterminous United States where  they are revised annually.  VFR terminal area charts are helpful when flying in or near  Class B airspace. They have a scale of 1:250,000 (1 inch  = 3.43 NM or approximately 4 SM). These charts provide  a more detailed display of topographical information and  are revised semiannually, except for several Alaskan and  Caribbean charts.  [Figure 16-2]  World aeronautical charts are designed to provide a standard  series of aeronautical charts, covering land areas of the world,  Sectional charts are the most common charts used by pilots  today. The charts have a scale of 1:500,000 (1 inch = 6.86  nautical miles (NM) or approximately 8 statute miles (SM)),  which allows for more detailed information to be included  on the chart.  A free catalog listing aeronautical charts and related  publications including prices and instructions for ordering is  available at the Aeronautical Navigation Products website:  www.aeronav.faa.gov.  An aeronautical chart is the road map for a pilot flying under  VFR. The chart provides information that allows pilots to track  their position and provides available information that enhances  safety. The three aeronautical charts used by VFR pilots are:  • Sectional •  VFR Terminal Area  •  World Aeronautical  Figure 16-1.  Sectional chart and legend.  16-2 