Repeat Prob. 17–111 for a nozzle efficiency of 85 percent. A subsonic airplane is flying at a 5000-m altitude where the atmospheric conditions are 54 kPa and 256 K. A Pitot static probe measures the...

Repeat Prob. 17–111 for a nozzle efficiency of

85 percent.

A subsonic airplane is flying at a 5000-m altitude

where the atmospheric conditions are 54 kPa and 256 K. A

Pitot static probe measures the difference between the static and

stagnation pressures to be 16 kPa. Calculate the speed of the

airplane and the flight Mach number. Answers: 199 m/s, 0.620