The reverse flow design ensures low pressure loss and cool outer temperatures and film cooling is employed almost to the throat of the turbine inlet. Maximum continuous turbine inlet temperature is 800C at 100,000 rpm. The kerosene fuel is atomised using an air spray nozzle and the use of a liquid fuel reduces the possibility of overspeed because the fuel flow through the nozzle is automatically restricted as the compressor delivery rises. Fuel System Kerosene is the operating fuel. The fuel flow is regulated by a precision needle valve mounted on the first panel.
Fuel flow is measured using an electronic flow meter with a digital readout.
Starting is semi-automatic, the kerosene ignited directly by a high energy spark. Instruments are fitted to monitor fuel pressure and fuel tank level. A self contained lubricating system is incorporated which includes a water cooled oil cooler and all the necessary filters. Instruments are fitted to monitor oil pressure and temperature. Thrust Measurement Thrust is measured directly using a load cell mounted between the gas turbine floating sub-frame and the main frame.