A couple of days back I was watching a plane taking off/flying over me.
Gee, that looks fast.
Open the app and look.
Philippine airlines. BELOW 10,000. 266 knots! And getting faster.
I think it was about 5,000 when I saw it. But can't be sure.
It WAS below 10,00 as I was in FIVEDOCK (Sydney) and if it was above 10,000 by there, it's VSI would have to be off the charts.