Birdwatch Note Rating
2023-04-15 18:59:03 UTC - SOMEWHAT_HELPFUL
Rated by Participant: E99B514335E35EE2472472E1DCB2C183BD821E017F71A231A5C7C9B0337A3C32
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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