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I share in La Vanguardia Readers’ Photos this video and this series of photographs taken around Altet, in Urgell, when I observed how all the planes that entered France did so through Port Ainé.
The video is boring and slow but if you can get to the end you can see how all the planes turn to pass through the same point.
I have seen how they turned around and went back the way they had come. The point is that they turned to enter the Pyrenees at the same point, wherever they came from.
In addition, you can see the trails they leave in the sky. Airplanes form a vapor trail after the kerosene combustion process. The gases expelled by the engine come out at a much higher temperature than the outside temperature.
The sharp contrast in temperatures at a height greater than 30,000 feet (-50 degrees in the atmosphere) causes the immediate condensation of the water present in this mixture of substances. This causes us to see these kinds of elongated ice clouds that dissipate after a few seconds.
