Chief engineer officer on ships powered by main propulsion machinery of between 750 kW and 3,000 kW propulsion power (Старший механик морского судна с ГДУ от 750 до 3000 кВт) / Second Engineer (Второй механик) / Second engineer officer on ships powered by main propulsion machinery of 3000 kW propulsion power or more (Второй механик морского судна с ГДУ 3000 кВт и более) / Third Engineer (Третий механик)