Ed shows a video of a 1 wing on a turntable with a fan blowing across it. That 1 wing will fully revolve. I'm building mine with a 36" center to center of the 3 wings, and 6' tall, by using 2 sets of 3 wings.
I'm as rural as one can be, so, I have full open access to the prevailing wind direction, and soon, will be cutting a couple rows of our tree thinnings, to allow the wind to proceed past the turbine(s), before stacking up, as you stated.
I will be doing an axial PM alternator on each turbine I build, so, slow speed torque will be good, and also gearing it to run at LEAST 2:1 or 3:1, alternator to turbine.
I still don't have a large enough battery to need a great amount of generation. I am experimenting and adding to the system, so, one day, I can open the knife switch to the meter of the power company, and can always close it if needed.
Trying to get the computer and all lights off the power company, then, TV @ 12v and then, refrigerator, if only at a reduced usage of power company, as I get more batteries and power generation going.
Need to come up with an alternate clothes washer and dryer. Washers here, start, spin, stop. Reverse start, spin, and stop. etc., etc. Mostly using surge voltage on every cycle, which draws more than steady running. Need to move a couple of big rocks up near the house, and a system to spray water over them, as a Rube Goldberg device thrashes the clothes against the rocks.