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If static pressure of flow is 1200psf and operating Mach number is 1.19 then, determine the external flow dynamic pressure.(a) 1189.52 psf(b) 12.89 psf(c) 112 psf(d) 2587 psfI got this question in an interview for internship.This interesting question is from Flight Mechanics in section Performance and Flight Mechanics of Aircraft Design

Answer» RIGHT option is (a) 1189.52 psf

For explanation: DYNAMIC pressure = 0.7*STATIC pressure*Mach number^2

= 0.7*1200*1.19^2= 1189.52 psf.


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