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Calculate the approximate value of length at which supersonic after burning engine could be design in such a way that thrust at takeoff will be 29800 unit and maximum Mach number will be 2.12.(a) 219(b) 100(c) 301(d) 183.129The question was asked by my college director while I was bunking the class.Question is from Propulsion in section Propulsion and Fuel System Integration of Aircraft Design |
Answer» RIGHT choice is (a) 219 The BEST EXPLANATION: Given, THRUST = 29800 unit, Mach number M = 2.12 Now, Length L is given by, L = 3.06*T^0.4*M^0.2 = 3.06*29800^0.4*2.12^0.2 = 3.06*61.615*1.162 = 219 unit. |
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