А.E. Makarov1, I.M. Lerner2, I.V. Ryabov3

1,3 Volga Region State Technological University (Yoshkar-Ola, Russia)

2 Kazan National Research Technical University named after A.N. Tupolev–KAI (Kazan, Russia)

1 makarovaleksey2014@yandex.ru; 2aviap@mail.ru; 3ryabov22@mail.ru