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Air pressure and density

Professional Pilot

Every pilot knows that aircraft fly because the forces of lift and thrust balance or exceed the weight and drag countering them. Because density and pressure are directly related, and pressure is easier to measure, we can use pressure altimeters to determine our altitude. inches of mercury (1013.25

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Trial by Ice

Air Facts

This particular 172 normally cruised at 120 mph indicated airspeed, but with the ice it would barely do 90 mph and that required full throttle! It was also destroying the propellers air foils causing a loss of thrust. Up we went, trading airspeed for altitude. What had happened? How can this be? His words were a shock!

VOR
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Indicated Airspeed Versus True Airspeed | 5 Types of Airspeed

Thrust Flight

In this article, we’re going to compare indicated airspeed with true airspeed and help you get a deeper understanding of the difference between the two. Like its partner in crime, the altimeter, your airspeed indicator gives you vital information about the plane you’re flying.

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The Classic Boeing Airspeed Indicator

AeroSavvy

The ADC processes the data and sends it to various aircraft systems including airspeed/Mach indicators (like the SI-800), altimeters, Flight Management Systems (FMS), Autopilot Flight Director System (AFDS), elevator feel computers, and more. This speed is identical to the speed depicted by the Airspeed Pointer.