The Sindy Project is Institute's own unmanned aerial vehicle development project. The aircraft was designed to serve as a test platform for UAV on-board avionics system development. The mathematical model will be identified and it will be made available to the public. The main goal was to create an easily reproducible aircraft, using accessible parts and simple technologies, which only require ordinary tools. This feature - together with the availablity of the mathematical model - makes this aircraft a good platform for control research purposes.