Mathematical model of an inadvertent stall

This paper contains the mathematical model of an inadvertent stall as the incipient phase of a spin. Some further simplifications were included. Representation of a rigid plane was modeled as the three-dimensional movement of center of gravity. The equations of motion were presented, as well as the basic equations for the LLT method. The aerodynamic stall as the specific flight phase and the Loss of Control in Flight cause of aircraft accident sets the global safety concern that needs further actions. The created mathematical model shall be used for creating simulation algorithms for an inadvertent stall.