Drag Indicated Airspeed 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’s why. What Is Mach Number?
Flying Magazine
MAY 7, 2025
Naval Academy, approached the problem by setting lift-drag ratio, L/D, as his metric of efficiency. These are indicated, not true, airspeeds.) I believe the reason is that flight testing reveals that with the added drag of a windmilling propeller, which my simulation ignores, a lower gliding speed is better.
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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.
Professional Pilot
JULY 7, 2025
Every pilot knows that aircraft fly because the forces of lift and thrust balance or exceed the weight and drag countering them. Aeronautical engineers improve continually on that imbalance with better airfoils and powerplants along with aircraft designs and materials to reduce weight and drag.
Flying Magazine
JUNE 30, 2025
Ailerons are actuated by pushrods that run through the wing struts, reducing aerodynamic drag and giving the responsive ailerons a solid feel. On takeoff, the NX fuselage is already level rather than in the high-drag, nose high position. The manual flaps have four positions, up, 16 degrees, 33 degrees, and 46 degrees.
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