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Mach Number Explained: What It Is and Why Pilots Use It

Pilot Institute

Why don’t they use Indicated Airspeed just like the pilots who fly slower aircraft? Key Takeaways Mach number is a dimensionless ratio of true airspeed to local speed of sound. That’s the speed your airspeed indicator shows based on ram air pressure in the pitot tube. Here’s why.

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How to Fly Perfect Lazy Eights

Pilot Institute

The aileron on the right wing deflects down, increasing the camber and creating more lift. For a Cessna 172, the recommended indicated airspeed for the maneuver is 105 knots. Adverse Yaw Adverse yaw is an aircraft’s tendency to yaw opposite the direction of a roll. Let’s look at why this happens.