Originally Posted by
layman
The 30 times effect from a static windbreak was measured using wind speeds of around 16 knots, not the 5-8 knots in the article. The lower wind speed would further reduce the effect to much less than the 3 kms research has shown.
Research on wind turbines has suggested keeping aircraft at least '30 blade diameters' from a wind turbines although this was measured at much higher wind speeds (up to 27 knots).
30 blade diameters is still less than 3 kilometres in the case of the Gunning wind farm (40 metre blades + hub diameter)
I haven't flown near them at low level but 9 km away is still a stretch to claim the turbulence was solely from the wind turbines. Over those distances there may have been other effects from the surrounding environment impacting on aircraft (heat turbulence? topology?)...
What research
?
As I have found in the 10 odd years I've been looking into the global warming 'industry' the claims of "research has suggested" just never pan out. So some links to this research please..
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