The 4-blade Windmill
During the development of the Ghazipur windmill in India, there appeared to be a need for a smaller and cheaper windmill. Therefore, the 4-blade windmill was constructed from scrap materials. This mill is cheap and can pump water from little depths (several meters). The windmill is easy to transport and suitable for pumping irrigation water from a canal. Since the windmill has only four blades it will not run at low wind speeds.
The 4-blade windmill is currently not in working condition at the WOT demonstration terrain.