By the way, my friend is a former А380 captain at Emirates. Now he is undergoing training on a Boeing 747 in a large cargo company (ABC) and is currently in Frankfurt, on a Lufthansa 747 simulator. Jan, I got it, you fly to LH
Earlier I used a coarser calculation FL / 3 + 15 (margin to smoothly reduce the speed). And your calculator is just an immersive effect. So thank you very much and thank you for the plane