Remove Airlines Remove Indicated Airspeed Remove True Airspeed
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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. Mach number is simply a ratio of your true airspeed to the local speed of sound. Here’s why. What Is Mach Number?

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Going Below Minimums

AV Web

In fact, many airlines prohibit their pilots from circling approaches, especially at night. However the indicated airspeed at which you circle is not the same as the true airspeed , and of course the difference increases with altitude. Of course, this expectation should be set well in advance.

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Exploring the Intricacies of the Airspeed Indicator

Pilot's Life Blog

True Airspeed vs Indicated Airspeed VS Equivalent Airspeed Since airspeed indicators use air pressure to measure speed, the indicated airspeed can be less than the actual airspeed at higher altitudes.

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Split-S Decision

Plane and Pilot

After the military, he joined Hughes Airwest as an airline pilot and settled down with his wife and baby in Boulder City. The airline merged with Republic, then Northwest, and finally Delta. Flutter is a dangerous, complex, dynamic aeroelastic phenomenon dependent on true airspeed. The pilot learned to fly in the U.S.

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Split-S Decision

Plane and Pilot

After the military, he joined Hughes Airwest as an airline pilot and settled down with his wife and baby in Boulder City. The airline merged with Republic, then Northwest, and finally Delta. Flutter is a dangerous, complex, dynamic aeroelastic phenomenon dependent on true airspeed. The pilot learned to fly in the U.S.