1. Brighton

    Brighton New Member

    Hello. I was flying over the Alps yesterday in a Boeing 767 and saw a black line on the sky which I couldn't identify. I have a video of it. Could someone advise me if it is a contrail?
    Last edited by a moderator: Apr 17, 2017
  2. Trailblazer

    Trailblazer Moderator Staff Member

    Can you upload the video so that we can see it, and tell us where and what time it was filmed?

    Contrails often look black when the sky behind them is brightly lit, so that would be my guess. Also contrails can cast shadows on lower clouds or even through the air itself.

    See this thread: https://www.metabunk.org/explained-dark-contrails-behind-bright-planes.t5957/#post-147532

    Last edited: Apr 17, 2017
  3. Trailspotter

    Trailspotter Senior Member

    Can you post a screenshot from your video, please?