Abstract This paper deals with the Unmanned Aircraft Vehicle (UAV) flight phases dynamics simulation. It predicts the accuracy of the UAV flight using the output graphs. The monitoring of the main flight phases (take-off, en-route, landing) is carried out using instruments, UAV standard procedures and rules established by the applicable aviation standards for the method of Unmanned Aircraft Vehicle operation. The fundamental peculiarity of flight and technical analysis is based on a gradual qualitative change in the movement of a known flying vehicle, where its operating systems and its management and control rules are gradually changed and transformed in accordance with technical, operational and legislative conditions which means the transfer of flight and technical analysis from the area of mathematical-mechanical precise flight tracking and the sophistication of its operation in a mountainous environment.