Official since today, Navigraph updates are now also available for TOPCAT database. Before FlightSimSoft grants us with their popular flight planner and preflight dispatcher tool PFPX, their solution for take-off performance calculation and weight / balance management already made the Christian Grill famous in FS community.
TOPCAT database has runways lengths, obstacles in their vicinity, airports altitude and computes distance between departure and arrival plus alternates for fuel predictions. All these settings can now be updated on a monthly basis with the navigational data provided by Navigraph Airac Cycles, that you can get access to when you purchase ‘coupons’ at simMarket.