Originally Posted by
CPRich
Obviously a data error. It happens. One single data point in a 90 minute gap in data, plus a 5K ft climb midflight in 17 minutes, and then back down 3K ft is another strong clue.
Fastest ground speed shown for any commercial plane at
groundspeedrecords is a 747-400 at 752kts, or 865mph.
Really neat information at ground speed records and Interestingly enough one of the records is a flight I think I was on on 2/13/14 SEA-BOS onboard an AS B738. I’ll have to go check my mileage account records for confirmation.