AFAIK, Little Navmap pulls taxiways (and most other airport information) from the scenery files themselves. Many of the default airports do not have the correct taxiway designations. Add-on airports may have the correct designations if the scenery developer programmed them in. Pilot2ATC uses the correct real world taxiway designations, so you’re better off using a real world airport diagram instead of what you see in LNM, especially if you’re at a default airport.
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