Abstract
The article considers a wind power installation, which significantly differs from the other existing wind power installations in that it has rocking an automatically controlled sail of a toroidal shape and a manipulator converter of the wind kinetic energy to the mechanical energy of forward motion. Having analyzed aerodynamic variables, timing chart, and having built a simplified dynamic model, the authors determined geometric, kinematic and dynamic properties, which are necessary for the future design engineering, automatic control and research of the wind power installation. The study gives a description of the acting laboratory-scale model of the sail wind power installation and performance test results.