Birdwatch Note Rating
2025-07-21 19:09:24 UTC - HELPFUL
Rated by Participant: EA55B82874BF100CB1EFF3083CF9B6B09DC655FBCE87C9838FADACDDD4694DA4
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Original Note:
This is an aerodynamic contrail, which forms when air pressure drops over the aircraft surfaces. When air pressure drops, the water-holding capacity of the air drops, so the invisible water vapour condenses and becomes visible. It has happened ever since planes flew at height. https://www.boldmethod.com/learn-to-fly/weather/contrails/
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