Uproszczona analiza ustalonego korkociągu samolotu

An estimative, graphical method for predicting steady spin modes of an airplane is presented. An airplane has been treated as a rigid body. It has been assumed that spin axis is vertical, roll angle and angle of attack are small, and that spin axis belongs to the symmetry plane of an airplane. Test calculations have been carried out for Polish training airplane TS-11 ,,Iskra''.