The new report KD 769 has been added at the menu KD-reports. The title of this report is: “Calculations executed for the 3-bladed rotor of the VIRYA-4.2B3 windmill (lambda design = 6.5, wooden constant chord blades) driving the PM-generator of Hefei Top Grand type TGET380-10KW-1200R for 24 V battery charging”. The rotor with wooden blades is an alternative for the rotor with stainless steel blades as described in report KD 733.