Recently, Phil J posted:

I don't know if this guy's ideas would work, but it's a shame he
hasn't had a chance to really try them out...

http://www.airspacemag.com/issues/20...y_turbines.php

Very interesting article, and given Gerry Merrill's credentials, quite
plausible. Unfortunately, it isn't surprising that he has repeatedly run
into the wall presented by a market too small to support such a project.
The notion seems to be, "If we build it... they still won't come."
Remember the BD-5?

Neil