About the NGS
Aeronautical Survey Program About the NGS
Aeronautical Survey Program
View our slide show for an overview of the Aeronautical Survey Program!
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The National Geodetic Survey, formerly part of the U.S. Coast and Geodetic Survey, has been performing aeronautical surveys since the 1920's. The survey data provides critical runway, obstruction, navigation aid, and airport feature information needed to safely fly into airports. The FAA uses the data to develop instrument approach and departure procedures, to determine maximum takeoff weights, to update aeronautical publications, and for airport planning and engineering studies. The FAA has commenced a program to provide Global Positioning System (GPS) approaches throughout the National Airspace System. NGS supports this program by performing Area Navigation Approach (ANA) surveys at airports selected by the FAA.
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