Posted 9/16/2014 19:56 (#4078000 - in reply to #4073727) Subject: RE: windmills
NC Iowa
I was at a farm sale a few weeks ago and there was a windmill about 1/4 mile away. it was an overcast day with a light wind. that mill produced a steady 'whoop whoop whoop' every time a blade passed the tower. maybe the harmonics were just right to amplify the sound. I sure wouldn't want to listen to that the rest of my life.
windmills
