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This study analyzed the tolerability of factors of flight work by Vietnamese pilots. The effects of aerobatic overloads (statoergometry), hypoxia (hypoxic test), and statokinetic loads (Otolith reaction-10 test) were simulated. To assess the functional state, computer stabilography and psychophysiological techniques were used to determine the reaction of choice and the critical frequency of light flashes. Height, bodyweight, blood pressure, heart rate, and blood oxygen saturation were recorded. In this study, 17 Vietnamese (group 1) and 24 Russian (group 2) pilots aged 1922 years were examined. Significant differences in height and bodyweight were found between the groups, which affected the tolerance of static muscle loads. Only 12% of the Vietnamese pilots completed the statoergometric test, and only one of the Russian ones did not reach the fifth stage. The conducted tests did not significantly affect the psychophysiological indicators, although they had multidirectional changes. Thus, when performing a normobaric hypoxic test, the blood pressure, heart rate, and blood oxygen saturation at the 5th minute of the recovery period returned to their original values. A slight increase in the pulse rate did not reach statistical significance. In general, the tolerance for normobaric hypoxia in both groups was good. However, a significantly smaller area of displacement of the pressure center of the statokinesiogram indicated a greater strain of adaptation mechanisms in group 1 than in group 2. The reaction to the statokinetic effect also indicated a satisfactory tolerance of the vestibular test Otolith reaction-10. Moreover, the tension of adaptive mechanisms in group 1, in contrast to group 2, was more pronounced. In addition, changes in the indicators of computer stabilography suggest a greater strain of adaptive mechanisms in Vietnamese pilots than in Russian pilots. The results indicate the need to develop methods of preparation for flights with aerobatic overloads and a system of psychophysiological training of pilots of the Socialist Republic of Vietnam to increase resistance to the influence of professional factors of flight work and the successful operation of Russian aviation equipment.

Considers the influence of the degree of extraversion on the perception of digital information by aviation operators. The analysis of the results of solving the Schulte tables by the test subjects on the NS-Psychotest hardware complex based on the recording of the eye track, performed using a stationary eye tracking device RED250mobile eye tracking device was carried out. While performing the search function, the number of saccadic movements, their amplitude, and the search time for a given digital value were registered. It has been revealed, that introverts during realization eyes search function perform less saccadic movements and spend less time on it than extraverts do. Significant differences have been found during resolving search tasks depending on degree of extraversion. Some interconnections of extension the latent period of the saccade with complication of solving process the cognitive problem were also found. It was found out, that increase in speed of saccadic movements of eyes leads to low efficiency of results of search task execution. Results of conducted research emphasize value of individual approach to medical flight service taking into account psychological features of flight crew in conditions of rapid progress in aviation technologies and means of visualisation of flight information. The obtained data reveal some features of information perception by operators of complex ergatic systems, the study of which in the future will help to maintain the reserves of attention in a continuous stream of incoming data, and thereby reduce the load on the visual analyzer and increase the reliability of professional activities of flight crew.