Navigraph Charts is client software which allows you to download airport and enroute charts when you need them. It connects to Navigraph servers and polls for the latest information available and helps you stay updated and organized. he chart format is based on research by human factors specialists and subject matter experts. The aim is to describe approach and departure procedures from airports with a clear presentation of altitudes, obstacles and landing minima during Instrument Flight Rules. Each chart also features a communication box which displays all the relevant frequencies for the current stage of flight. he charts show the upper and lower airways, waypoints, and altitudes over a larger area. The enroute charts are downloaded through a client which allows zooming the vectorized graphics of select areas to enlarge details.