Source: http://www.sauberer-himmel.de/2013/03/25/airbus-a380-861-der-air-france-und-die-regeln-der-physik/

The structure of a CONtrail:
http://www.flickr.com/photos/jpro747/8138001267/in/photostream

And the structure of another CONtrail
http://www.flickr.com/photos/jpro747/6833711756/in/photostream


compared to the ?TRAIL of the Airbus A380-861 of the Airline Air France as is shown below:

Attachments
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Last edited by Denglisch; 12/16/13 11:50 AM.