TK 78 broke speed of sound?

[Proisrael]

Flight Aware shows a massive speed spike to over 960MPH!! Is that normal? Is it a mistake?

https://flightaware.com/live/flight/THY78

[Boruch999]

The air frame is not built to stand up to the stress of breaking the sound barrier.  This was likely ground speed.  Speed relative to surrounding air was below the speed of sound.  A strong tail wind allows the plane to achieve higher ground speeds than the speed of it's actual travel through the air.

There was discussion of this in the thread about the El al plane swap at Gander.  @TimT?

[Proisrael]

The air frame is not built to stand up to the stress of breaking the sound barrier.  This was likely ground speed.  Speed relative to surrounding air was below the speed of sound.  A strong tail wind allows the plane to achieve higher ground speeds than the speed of it's actual travel through the air.

There was discussion of this in the thread about the El al plane swap at Gander.  @TimT?

Even if that is true, it still a massive spike from 550-600 to 960

[ariIs]

It’s obviously a mistake - just look at the spike on the chart.

[Proisrael]

It’s obviously a mistake - just look at the spike on the chart.

But it stays above 800 for at least 10-20 minutes

[as2]

But it stays above 800 for at least 10-20 minutes

Maybe they accidentally switched over to Kilometers for a few minutes

[momo]

Not sure where to post this but im on b6 flight 584. We are at a steady 800 mph!

[ariIs]

Not sure where to post this but im on b6 flight 584. We are at a steady 800 mph!

No, you were at a steady 800 kph == 500 mph
https://flightaware.com/live/flight/JBU584/history/20190429/1800Z/KMCO/KJFK/tracklog