Report KD 749 can be copied for free from my website:
www.kdwindturbines.nl at the menu KD-reports. The title of KD 749 is: "Calculations executed for the 2-bladed rotor of the VIRYA-5S windmill (lambda design = 7, Gö 711 airfoil, stainless steel blades) meant for connection to the axial flux generator of Hefei Top Grand type TGET450-5KW-500R for grid connection or water pumping". Report KD 747 replaces report KD 758 about the VIRYA-5T with tapered blades made out of 4 mm galvanised steel sheet. The VIRYA-5S rotor is a lot lighter.
