## Control Systems and Computers, N3, 2017, Article 10

##### DOI: https://doi.org/10.15407/usim.2017.03.086

Upr. sist. maš., 2017, Issue 3 (269), pp. 86-92.

UDC 629.7.077

Nedilko V.N., PhD in Techn. Sciences, associate professor, Head of the Department of Information Technologies of the Kirovohrad Flying Academy of the National Aviation University, Dobrovolskyst, 1, Kropivnitsky, 25005, Ukraine, nvn60@ukr.net

Semenyuta M.F., PhD in Phys.-Math. Sciences, associate professor Department of Physics and Mathematics Sciences of the Kirovohrad Flying Academy of the National Aviation University, Dobrovolskyst, 1, Kropivnitsky, 25005, Ukraine, marina_semenyuta@ukr.net

Stratonov V.N., Lecturer Department of Searchand Rescue, Aviation Security and Special Training of the Kirovohrad Flying Academy of the National Aviation University, Dobrovolskyst, 1, Kropivnitsky, 25005, Ukraine, vadya862@gmail.com

### Justification of the Method of Choosing the Optimal Place for the Forced Landing of the Aircraft on the Water Surface

Introduction. The results of the research of the development of a method of choosing the optimal site for the forced landing of an aircraft on the water surface are summarized. The cases of ditching are analysed. The causal connects between the place of landing and the overall people survival rate are observed.

Purpose. The following problems are solved: the substantiation of the method of choosing the optimal place for the forced landing of an aircraft on the water surface, developing a method of the optimal route calculating for carrying out the evacuation operations, estimating the factors influencing the forced landing, evacuation and the process of further survival.

Methods. In order to assess the degree of the factors of influenced, the method of expert evaluations is used. The task of optimizing the evacuation route is solved using the methods of the graph theory.

Results. The article outlines the results of an expert survey aimed at identifying the factors that have the greatest impact on the process of ditching and further survival rate. The isolated complex factors (Landing Conditions, Evacuation Time and Eligibility of the Settlement, for Victims Assistance) are explored. The factors like Landing Conditions and Eligibility of the Settlement, for Victims Assistance are estimated by the experts, their impact is expressed in terms of weight, reflecting their danger. The task of reducing the time of evacuation is solved by applying the methods of graph theory.

Conclusions. The research describes and justifies the method of selecting the optimal place of ditch. This method can be used by flight crews during the situations on board, which prompts to perform the forced landings.

Key words: forced landing, aircraft, ditching, expert survey, oriented graph, Dijkstra’s algorithm, evacuation route.