Two heavies crossing above Cleveland last March. Photo: Chuck Slusarczyk Jr. – OPShots.net Contrails are generally classified into two types. Exhaust contrails and aerodynamic contrails. Exhaust contrails are formed by the mixing of the hot humid exhaust of the engines with cold humid surrounding air, creating long… Read more
Using the formula found in this article, you can use simple geometry to calculate the distance of contrails, such as the one made by this USAF B-52 over Columbus in 2011. Photo: Stephen Mosley Sr. – OPShots Contributor // When you look up in the sky and you see a contrail, how far away is it? How far away are these… Read more
A United Airlines 767 showing contrail-gap as it passes over Columbus Ohio in May 2012. Photo: Corey Betke – OPShots Contributor // Contrails are the white lines that sometimes form behind high flying aircraft. They are actually a type of cloud. The cloud forms because jet exhaust contains quite a bit of water. If the… Read more
One often gets satellite images of contrails and it’s hard to visualize what’s going on, especially with racetrack contrails drifting in the wind. So I wrote a little simulator applet to demonstrate the formation of a contrail under various conditions. I have just updated this applet to display contrail grids by default…. Read more
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