Airport/Facility Directory

NACO produces Airport/Facility Directories (A/FDs) in PDF format.  Each page is an Individual PDF file.  These files are updated on a 56 day cycle.  When you include a A/FD, for an airport, in your Trip Pack the file is downloaded and stored in cache and then added to your Trip Pack PDF file.  The next time you access this airport A/FD it will be retrieved  from cache and will not be downloaded.  This implies that the first time you include an airport in a Trip Pack you should have internet access to get the A/FD for that airport.