Construction tutorials

good starting points for building

http://www.macarthurmusic.com/johnkwilson/MakingasimpleSavoniuswindturbine.htm

explicit instructions; quite small, maybe bench-scale size

build a savonius (tiny).pdf

$100, double-stacked 55 gallon plastic drums with lazy susan bearings, video of rotation (at 7min in first video) and some other designs

http://greenterrafirma.com/vawt-designs.html

Lenz turbine, two fins, 8ft diameter; 6W at 4mph

http://altenergy.blog-city.com/vawt2.htm

commercial product, costs roughly $10k; 1kW in 23mph winds; technically a Lenz turbine; would roughly fit in a cube 8ft on a side

http://www.windterra.com/main.php?page=products

instructables, a DIY website, has several savonius designs; none reference any design theory

aluminum scoops , plastic barrel , PVC and bike wheel , strange inward-facing PVC cardboard lenz turbine (bench scale)

3D Model schematics for VAWTs

http://sketchup.google.com/3dwarehouse/details?mid=35e71d4359090f4edc50d5f0db487aac