Report KD 750 about the VIRYA-5R with a 2-bladed rotor made out of Roofmate is cancelled because it is doubted if the rotor can be made strong enough. The new report KD 791 is added titled: “Calculations executed for the 3-bladed rotor of the VIRYA-5B3S windmill (lambda design = 6.5, Gö 711 airfoil, stainless steel blades) meant for connection to the axial flux generator of Hefei Top Grand type TGET450-5KW-300R for grid connection or water pumping”.