Birdwatch Note Rating
2023-04-16 08:03:03 UTC - HELPFUL
Rated by Participant: 11BD4779EEDEF6AD0A8B9909631A879F67A440041395BBCD87190183433B5876
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Original Note:
The "faster" airplane is at a lower altitude. High altitude flights are separated by multiples of 1,000 feet. That's one of many reasons why one plane is producing contrails and the other isn't. Judging distance to airplanes by eye is extremely difficult. https://contrailscience.com/why-do-some-planes-leave-long-trails-but-others-dont/
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