Mach Number Explained: What It Is and Why Pilots Use It
Pilot Institute
JULY 11, 2025
That’s the speed your airspeed indicator shows based on ram air pressure in the pitot tube. How Pilots Use Mach Number in Flight Operations Flight Planning and Mach Techniques Every aircraft has an optimum cruise speed that gives it the best fuel mileage. It’s not just the tail that experiences control issues.
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