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by LoSboccacc 3379 days ago
the wortex begin as high density high velocity turbolence and expands rearward

http://cfile29.uf.tistory.com/image/145D430D4CFE23D50A5BD0

being close is relatively safe from wortexes - there still is some other turbulence to consider, but the standard turbulent flow caused by drag is chaotic so it'll shake you but will 'even out'