ForeFlight uses the World Geodetic System 1984 standard (WGS84, EPSG:4326) for its geographic data. For more information about this standard, visit:
Wikipedia.org - World Geodetic System
ForeFlight does not use NAD83 or NAD27. However, WGS84 is very similar to NAD83. WGS84 and NAD83 are often "paired" together because they are so close and only differ at a very close scale.
Last Updated:
Was this article helpful?