In the article is conducted the comparative estimation of operating descriptions engines of power plant for a perspective educational-battle or easy battle aircraft. As a prototype is accepted for realization of calculation of aerodynamic descriptions the modern educational-battle aircraft of L-15LIFT. The brought results over of determination of flying and technical descriptions, technical economic descriptions of educational-battle aircraft with different engines in composition a power plant for different flight tasks. The shown results of calculation of operating descriptions of perspective engine and aircraft are life cycle cost of the engine powerplant, flight hour cost of power plant and aircraft, as well as the costs of maintenance and repair.
conception of aircraft, educational training aircraft, perspective educational-battle aircraft, self-reactance outline, turbo-engine, power-plant, operating descriptions, flying and technical descriptions