Colin wrote
First thing I did - look at weather ...Melbourne wind gusting to 25 SSE 7/8 08:00 Anybody want to guess what the wind was at Mt D since his speed was about 15kts higher than Vne.and maybe 40 kts higher than normal cruise
I think the 322km/h (175knots) must be ground speed because that's what Flight Aware and Flight Radar normally shows.