I'm working to a VNAV autopilot and i need an XML variable to know GPS flight plan maximum altitude and the destination airport elevation (feets).I've found the (@c:WaypointAirportElevation, feet) but i don' t know how to read it for the flight plan destination airport.For flight plan altitude i have not found any variable.

Hi,Try:(@c:FlightPlanDestinationAltitude,feet)(@c:FlightPlanCruisingAltitude,feet)Jan"Beatus ille qui procul negotiis..."

Hi Jan,they works very well, many many thanks.I need also a variable for TOTAL REMAINING DISTANCE to the destination runway when a "GPS Approach" is loaded. I' ve found this:(C:fs9gps:FlightPlanWaypointApproachRemainingTotalDistance,nmiles)but i dont know how to set runway waypoint to FlightPlanWaypointApproachIndex.Do you know a way for this ?There is a complete GPS variables list somewhere ??

Hi,You can extract the GPS variables from the SIM1.dll.The total approach distance is measured to the missed approach point, so too long.I use something like FlightPlanWaypointApproachIndex -1 or -2 dependant of the segments after the RWY.Jan"Beatus ille qui procul negotiis..."

>Hi,>>You can extract the GPS variables from the SIM1.dll.>Absolutely zero need for such an extreme process.

gps variables.html, which is part of the FSX SDK under "Panels and Gauges SDK", lists the GPS variables.Hope this helps.