Here is proof ducted fans can be driven by a light breeze. The 24″ fan started the 2 meter LIM from a dead stop with no assist. When wind tumbles over the top of a building there is a velocity gain of 180%… so a light 8mph breeze becomes a viable 14mph energy producing wind if you place a ducted fan in its path. Wait til you see it operate in a Class 2 hurricane.
At right is the base complete with brake and access for the electronics