by Steve Waite » Wed Jan 03, 2018 5:55 pm
...the GTN uses an old navdata set where there are dozens of waypoints different to those contained in your downloaded Navigraph/NavDataPro set and then there's no waypoints called TOC, TOD, APP, TDWN etc. Remember that IF makes routes based on the AIRAC you point it to compared to the waypoints that really exist in the sim so the .gfp might contain waypoints that do not exist in the GTN data and would be ignored. We instead output the gfp AND the user waypoints so that we can fly any route we choose irrespective of what's in the GTN. If we load any old route we downloaded, first it's not been created to work with the current plane you have loaded, second it may contain waypoints that either do not exist or have moved.
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