Аннотация:Abstract—The paper presents the results of experimental studies of an unsteady pulsating transverse–longitudinal discharge created in high-speed air and propane–air mixture f lows. It is shown that, under the conditions of such a discharge, near the electrodes, the gas is strongly heated, to temperatures of 6000–9000 K,and the gas temperature increases with increasing discharge current and airflow velocity. Test experiments were carried out, the results of which show that, under the conditions of an electrode transverse–longitudinal discharge, quasi-steady non-self-sustained combustion of a supersonic f low of a propane–air mixture is realized.