Contrails or vapour trails are trails of condensed water vapour made by exhaust of airplane engine. When the air temperature is very low the hot vapour condense into ice crystal forming these white trails. When contrails are numerous in the sky it is possible the formation of cirrus clouds. Some picture are taken during an exhibition of military airplane in fact they make drawings in the sky using contrails.



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 high level clouds photo. contrails 5 5 stars (22 votes)

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Valentina Sannicolo.

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contrails, nature, clouds, high level clouds, vapor trails, condensed water vapor, aircraft exhaust, aircraft engines, low air temperature, hot vapor, condense, ice crystals, cirrus clouds, military airplanes exhibitioncontrails.

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contrails, nature, clouds, high level clouds, vapor trails, condensed water vapor, aircraft exhaust, aircraft engines, low air temperature, hot vapor, condense, ice crystals, cirrus clouds, military airplanes exhibition, reign, beauty, life, harmony, natural, isolated, green, no people, color, wild, nature photography, atmosphere, altitude, air current, temperature, large, puffy, stratocumulus, light, white, cirrus, physical phenomenon, sky, high, level, high atmosphere level, feet, cirrostratus, cirrocumulus, cirrus uncinus, contrails, vapor, trials, airplane, exhausts