Indicated Airspeed Knot True Airspeed 
Pilot Institute
JULY 11, 2025
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, Mach 1 is roughly 573 knots (about 659 mph).
Flying Magazine
MAY 7, 2025
For instance, in the range of cruising power settings the specific fuel consumption of my Continental TSIO-360the rate of fuel flow required to generate one horsepowerimproves by about 1 percent with each increase in speed of three knots. These are indicated, not true, airspeeds.) Again, these are indicated airspeeds.
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Pilot Institute
NOVEMBER 16, 2024
If you’re aiming to get comfortable with managing both airspeed and altitude in flight, you’ll need to understand the difference between indicated airspeed (IAS) and true airspeed (TAS). Key Takeaways Airspeed and altitude are directly linked to each other throughout different phases of your flight.
Pilot Institute
FEBRUARY 1, 2025
This section is also needed when youre calculating your true airspeed, which you need to know to plan your flight. Step-by-Step: How to Use the E6B for Time and Speed Calculations Calculating Time en Route Lets say were flying at a constant airspeed of 100 knots. That means our groundspeed was 90 knots.
Plane and Pilot
JUNE 23, 2025
After a shallow turn from downwind, the Bonanza was positioned on base at a proper altitude and airspeed and with a constant descent rate. The wind at the surface was reported as 220 degrees at 6 knots gusting 19 knots. Increasing true airspeed makes the turn radius wider, resulting in an overshoot.
Pilot Institute
JANUARY 21, 2025
Airspeed guides everything from takeoff to landing and every phase in between. But did you know there are several types of airspeed, each serving a unique purpose? Like Indicated Airspeed (IAS) , Calibrated Airspeed (CAS) , True Airspeed (TAS) , and more! What Are The Different Types of Airspeed?
Pilot's Life Blog
APRIL 9, 2024
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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