(Solved): A low bypass ratio turbofan engine cruises at a Mach number of 0.78 , at an a ...

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A low bypass ratio turbofan engine cruises at a Mach number of 0.78 , at an altitude where the atmospheric pressure is $$0.43\mathrm{bar}$$ and the temperature is $$245\mathrm{K}$$. Using the parameters given below, and assuming an ideal cycle, determine the following: a) the hot and cold jet velocities b) the specific and total thrust developed c) the $$sfc$$ d) the thrust ratio e) the propulsive efficiency - The compressor pressure ratio, $$r_{\mathrm{c}}=15$$ - The Fan Pressure Ratio, FPR $$=2.25$$ - The Bypass Ratio, $$B=1.4$$ - $$\mathrm{TET}=1400\mathrm{K}$$ - The core mass flow, $${\mathrm{m}}_{\mathrm{c}}=95\mathrm{kg}/\mathrm{s}$$