Birdwatch Note Rating
2023-04-15 21:02:46 UTC - HELPFUL
Rated by Participant: 168E3F623584B6C7B24EF8DFA7334B9BA3681F8F51671FA58C7A9A73940333F9
Participant Details
Original Note:
Flights in the same direction are multiples of 1000 ft apart in altitude. That difference in altitude makes one plane look faster. Atmospheric conditions vary at different flight levels. Those conditions determine the formation of ice crystals, also known as contrails. https://www.faa.gov/regulations_policies/policy_guidance/envir_policy/media/contrails.pdf
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