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4-Engine Contrails

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The contrails from a 4-engine aircraft wrap around one another due to vortex interactions. Photo by JPC Van Heijst.

A view from above of contrails from a 4-engine aircraft wrapping up. Photo by Josef Willems.

Contrails from a 4-engine aircraft. Photo by Ercan Karakas.

Vortex sheet model of 4-engine contrail roll-up by Joseph Straccia.

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Celebrating the physics of all that flows

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