Report KD 797 can be copied for free from my website at the menu KD-reports. The title of this report is: “Calculations executed for the 3-bladed rotor of the VIRYA-4.1S windmill (lambda design = 4.5, stainless steel blades) driving the PM-generator of Magnetic Innovations type 260-75 LS for water pumping or grid connection or the type 260-75 HS for 48 V battery charging”.

Chapter 7 of report KD 749 about water pumping with the VIRYA-5S has been completely reviewed. Figure 7 has been added.

Report KD 796 can be copied for free from my website at the menu KD-reports. The title of this report is: “Ideas about a 20-pole radial flux permanent magnet generator with a 3-phase, 1-layer winding with no iron in the coils”. Report KD 645 about a 10-pole generator is cancelled.