yeah, that's retarded in the olden days, when i was a kid, they had windmills to pump water uphill and it was purely mechanical and the windmills had these tail things, wind vanes, that helped it orient correctly to the actual wind direction i fail to see how being so big makes them immune to not finding the direction or just being in a bad orientation to a temporary wind direction, sure, they need to react more slowly, but no vane at all? no rotator with a wind vane sensor? who designed these things? the muppet show writers?