High-flying jet: Four engines, four vapour trails

Clear winter blue, and cirrus avaiticus streak our prairie skies — condensation trails from jet engines of airplanes passing far overhead.

Four engines generate four trails that blend to two, then sometimes, to one. This trail stayed in two long streaks across the wide blue bowl above me.

(My in-house source tells me that planes this large, flying in this northwest-southeast direction, are generally international, flying over the pole to U.S. airports. At its height, it certainly wasn't landing anytime soon!)

I'm leaving, on a jet plane, contrails soaring.... © SB 

What is this? A jet and contrail (condensation trail, cloud formed by airplane) above my house.

Location: Far above Regina, Saskatchewan, Canada. 

Photo date: February 9, 2013. 

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