Report KD 716 can be copied for free from my website:
www.kdwindturbines.nl at the menu KD-reports. The title of this report is: "Calculations executed for the 2-bladed rotor of the VIRYA-2.3 windmill (lambda design = 5.5, wooden blades) using the axial flux PM-generator of Hefei Top grand model TGET260-0.5KW-350R". The VIRYA-2.3 with wooden blades replaces the VIRYA-2.22 with 7.14 % cambered stainless steel blades. Report KD 676, in which the rotor calculations for the VIRYA-2.22 are given, is therefore cancelled. The reasons for the modification are that manufacture of cambered blades requires special tools for cambering and twisting and that a rotor with cambered blades is more noisy because the sharp leading edge causes a turbulent boundary layer.
