[calgarygeologist]

Originally Posted by Bigtime

Was this WestJet 646 that left at 2:48am?

Looking at the Flightaware log for it there were ground speeds in excess of 900km/h for quite a bit of the flight. Some hits at 573 knots which is 1061km/h.

https://flightaware.com/live/flight/.../CYYZ/tracklog

You can also check out Groundspeed records to see lots of neat stuff too. Here is the top 3 for the 737-800:

https://groundspeedrecords.com/wof-t...00&term_id=425

Yeah that was our flight.