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Popular Science did a very small writeup circa 1999 - 2000 on a company that was experimenting with a large fan mounted horizontally on the roof of a van. As the van moved forward through the air, the blades would turn and charge the batteries. ( it was an EV )
What made it all work, was that the fan blades were geared to fold flush past a certain point. This reduced the drag that the blades would normally cause.
I don't have the magazine anymore, but if you were wondering, it had a story titled " Detroits new 80 mph cars ".
Much like the ' new 80mpg' cars, I never heard anything from that experimental van .
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