12/15/2013


A big group of civil defence workers who practiced a special training in Switzerland, boarded a Lockheed C-130 Hercules of Royal Moroccan Air Force. When taking off the heavy loaded military transport aircraft nearly used the full length of the runway at Berne. It was a cool, damp morning with ideal conditions for moisture condensation in the propeller blast. The result were awesome propeller vortices.

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