Abstract: The disclosed regulating system is intended for incorporation in two-shaft gas-turbine engine for a road vehicle, wherein a hydraulically controlled torque-transmitting device is interposed between the respective shafts of the turbocompressor and of the power turbine. The system includes in all-speed governor of the rpm value of the turbocompressor. The metering device of this governor is cut into the hydraulic line controlling the torque-transmitting device and is controlled itself by signals coming from a pickup responsive to the rpm value of the turbocompressor. The mechanism for tuning this pickup is operatively connected with the "gas" pedal. The system further includes a fuel feed governor included into the fluid supply line of the engine and controlled by the pressure downstream of the compressor.