Question: A turbojet engine is operating under the following conditions: Altitude (standard day) 12,000 m Mach 6.8. A turbojet engine is operating under the following conditions:

A turbojet engine is operating under the following conditions: Altitude (standard day) 12,000 m Mach 6.8. A turbojet engine is operating under the following conditions: Altitude (standard

6.8. A turbojet engine is operating under the following conditions: Altitude (standard day) 12,000 m Mach number 0.90 1 kg/s 15 Air flow Compressor stagnation pressure ratio Efficiencies Diffuser 100% Compressor Turbine 87% 89% Jet nozzle Turbine inlet temperature (stagnation) 100% 1400 K Take into account the mass of fuel added but assume an air standard cycle. All efficiencies are based on stagnation conditions, the stagnation pressure remains constant from compressor outlet to turbine inlet, and the nozzle is converging-diverging. Calculate: (a) The thrust developed by this engine (b) The thrust-specific fuel consumption

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