FIELD: aeronautical engineering. SUBSTANCE: method consists in takeoff, vertical climb and subsequent acceleration in climbing flight. Climb is effected intensively at rising vertical velocity without stop at upper point. In course of climb, critical point of ascent is checked to estimate possibility of landing and to continue of flight in case of derangement of one engine shifting to acceleration in climbing from vertical climb immediately after passage of critical point. EFFECT: enhanced reliability. 4 dwg
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