It appears a SimConnect_RequestDataOnSimObject on an AI aircraft in landing mode uses the destination field elevation for ground elevation and in use in calculating AGL, not the elevation immediately beneath the aircraft. I am not sure if this is by intent or a bug. It appears this will force me to make a subsequent call to RequestGroundInfoOnSimObject to get the real elevation and AGL. Is there some way around this to get real AGL on the original SimConnect_RequestDataOnSimObject?
I am currently using PLANE ALT ABOVE GROUND or GROUND ALTITUDE.