I was on flight radar looking at the transatlantic flights, and then I noticed that they were exceeding 550 KTS groundspeed. Now as the Laura has shown high altitude winds are being worked on. This will mean we will have to fly at unrealistic airspeeds just to stop our planes from exceeding 550kts groundspeed. The fastest transatlantic crossing by a subsonic plane got up to 647kts GS.
I would like to hear people’s thoughts.