CultureHelicopter CleaningTo view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 videoCulture03/07/2014March 7, 2014There are more and more wind turbines in Germany, and one challenge is keeping them clean. In western Germany, a helicopter has been developed to this end - it's cheaper and more efficient than cleaning by hand.https://p.dw.com/p/1BLVnAdvertisement