Mach Number Explained: What It Is and Why Pilots Use It
Pilot Institute
JULY 11, 2025
Lift, drag, and handling correlate well with IAS in the lower atmosphere. This type of wing redirects the shockwaves further aft on the wing, reducing drag. The result is a region of separated, turbulent flow behind the shock. This is partly due to the steep rise in drag nearing M cr. roughly) up to about Mach 5.0.
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