A pitot-static tube to be used in an airplane for on-flight measurement was calibrated on ground by using air of density 1.20 kg/m3. A measurement taken at an altitude of 3000 m where the ambient...

A pitot-static tube to be used in 2n airplane for on-flight measurement was calibrated on ground by using air of density 1.20 kg/m? . A measurement taken at an altitude of 3000 m where the ambient pressure and density were 70 kPa (abs) and 0.91 kg/m? respectively, indicated a velocity of 200 m/s by using the above ‘ground level calibration. Estimate the true speed of the airplane [Take k = 1.4 2nd R = 287 J(kg K


Extracted text: A pitot-static tube to be used in an airplane for on-flight measurement was calibrated on ground by using air of density 1.20 kg/m3. A measurement taken at an altitude of 3000 m where the ambient pressure and density were 70 kPa (abs) and 0.91 kg/m3 respectively, indicated a velocity of 200 m/s by using the above ground level calibration. Estimate the true speed of the airplane [Take k = 1.4 and R = 287 J/(kg.K)].