but why can aircraft not join & depart the circuit safely? Do the turbines extend more than 500' above the ridge lines?
I am sure you can still use the circuit at Crookwell safely however the combined height of the turbines and the ridge they sit on can place them well above VFR height in the adjacent valleys. Although I don't know if this is the case at Crookwell, it certainly is with the wind farms east of Adelaide.
Given the photographs on the previous thread showing turbulence extending several kilometers from the wind turbines I would suggest that if you fly into the lee of these things on a windy day you could be in for a very interesting ride indeed.
Below, east of Adelaide
