InterviewSolution
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InterviewSolution
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Which of the following indicates the range formula in cruise method 3?(a) R=\(\frac{1}{C}\Big(\frac{2}{\rho SC_L}\Big)^{\frac{1}{2}}\int_{W_i}^{W_f}\frac{dW}{W^{\frac{1}{2}}}\)(b) R=\(\Big(\frac{2}{\rho SC_L}\Big)^{\frac{1}{2}}\frac{L}{D}\int_{W_i}^{W_f}\frac{dW}{W^{\frac{1}{2}}}\)(c) R=\(\Big[\frac{V_{mdi}}{C}E_{max}\Big]2u_i\Big\{tan^{-1}\Big[\frac{1}{u_{i}^2}\Big]+tan^{-1}\Big[\frac{1}{\omega u_{i}^2}\Big]\Big\}\)(d) R=\(\Big[\frac{V_{mdi}}{C}E_{max}\Big]2u_i\Big\{tan^{-1}\Big[\frac{1}{u_{i}^2}\Big]-tan^{-1}\Big[\frac{1}{\omega u_{i}^2}\Big]\Big\}\)This question was addressed to me in an interview for job.The origin of the question is Cruise Method 3 in portion Cruising Performance of Aircraft Performance |
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Answer» Right option is (d) R=\(\Big[\frac{V_{mdi}}{C}E_{max}\Big]2u_i\Big\{tan^{-1}\Big[\frac{1}{u_{i}^2}\Big]-tan^{-1}\Big[\frac{1}{\omega u_{i}^2}\Big]\Big\}\) |
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