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Old 12th Nov 2018, 06:26
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Knold
 
Join Date: Dec 2000
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Wake enroute

Hi all,

I’ve been flying for close to 20 years now. The risks of wake turbulence has always been on my mind but more so over the last few years as I went from a medium jet to a light one.

After scouring the interwebs for numbers and information I can’t really find any specifics. My main concern is with the A380 but obviously also other heavy aircraft.

As far as descend rates of a vortex, I’ve seen anything from 300-700 fpm.
There are statements that a vortex won’t descend more than 1000 feet in total.
That they don’t last longer than 3 minutes. I feel this might not be conservative enough.

The questions I have are if anyone has any solid info on (relating to A380):

A. Lifespan of a vortex.
B. Max vertical movement.


Obviously things like atmospheric conditions and weight of the traffic will effect but assuming worst case is what I’m looking for here.
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