Report KD 715 has been added at the menu KD-reports. The title of this report is: “Calculations executed for the 3-bladed rotor of the VIRYA-10 windmill (lambda design = 6) with the pendulum safety system with a torsion spring connected to the generator type TGET770-H-10KW-100R for grid connection”. This wind turbine is meant to be used for generation of the energy for a group of houses to power the heat pumps.