Wake Turbulence Effect

[strake]

If this has been posted before, apologies. However, I think it is an extremely effective warning for those of us who fly from small airfields as a matter of course. Some very sobering evidence on the consequences of wake turbulence near the ground.
Wake Turbulence (https://youtu.be/KXlv16ETueU)

[Saab Dastard]

http://www.pprune.org/private-flying/568616-dreadful-accident-should-have-been-avoided.html