TY JOUR TI Mathematical model of unmanned aerial vehicle helicopter type in conditions of movement with disturbing influences KW drone aircraft KW dynamic model KW the impact of disturbance. JO Actual directions of scientific researches of the XXI century: theory and practice AU Melnik, N.. PY 2015 IS 3 PB FSBE Institution of Higher Education Voronezh State University of Forestry and Technologies named after G.F. Morozov