revedavion.com
Airliners contrails crossing
Two aircrafts crossing their contrails at different flight levels over Paris sky. The one we see seems to be an Air Berlin Boeing 737.
There are two types of contrails in this picture. The one being produced by the Boeing 737 is a classical contrail, its apparition is due to water vapour released by the combustion process in the engines. The other one is more complex, we can see the two vortexes rolling inside the main contrail. Those vortexes can't always be seen, but that day the temperature and humidity conditions made it possible.
See an article about this picture on my aviation blog : aeroplanedream.blogspot.com/2008/09/behind-aeroplane.html
Airliners contrails crossing
Two aircrafts crossing their contrails at different flight levels over Paris sky. The one we see seems to be an Air Berlin Boeing 737.
There are two types of contrails in this picture. The one being produced by the Boeing 737 is a classical contrail, its apparition is due to water vapour released by the combustion process in the engines. The other one is more complex, we can see the two vortexes rolling inside the main contrail. Those vortexes can't always be seen, but that day the temperature and humidity conditions made it possible.
See an article about this picture on my aviation blog : aeroplanedream.blogspot.com/2008/09/behind-aeroplane.html