A.A. Korobkov1, A.K. Gaysin2, I.A. Safiullin3, I.P. Ashaev4, A.F. Nadeev5

1–5 Kazan National Research Technical University named after A.N. Tupolev – KAI (Kazan, Russia)

1 aakorobkov@kai.ru, 2 akgaysin@kai.ru, 3 iasafiullin@kai.ru, 4 ipashaev@kai.ru, 5 afnadeev@kai.ru