Indicated Airspeed Knot Lift 
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. In terms of a formula, you can write it as: Mach number (M)= True Airspeed (TAS) / Speed of Sound (a) This means Mach 1 is the speed of sound, Mach 0.5
Flying Magazine
MAY 7, 2025
Naval Academy, approached the problem by setting lift-drag ratio, L/D, as his metric of efficiency. 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.
This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.
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. miles per hour.
Flying Magazine
JULY 7, 2025
Helium contributes only about 60 percent of the lift—the shape of the balloon forms a giant wing, providing the rest. READ MORE: Airlines and Pilots Don’t See Eye to Eye on Autonomous Flights Aerodynamic lift and vectored thrust come from two pairs of ducted propellers running on kerosene-powered engines, mounted outside the main hull.
Fear of Landing
JULY 18, 2025
The aircraft accelerated along the runway and reached V1, the take-off decision speed, of 155 knots normally. The aircraft lifted off at 08:08:39 UTC. In the air, the aircraft reached 180 knots indicated airspeed at 08:08:42, at which point the fuel cutoff switches transitioned from the RUN position to the CUTOFF position.
Fear of Landing
APRIL 19, 2024
The helicopter turned left to return to the airport, travelling at about 85 knots. The indicated airspeed had fallen below 65 knots and was still decreasing. As the airspeed decayed, the right yaw increased. As the airspeed decayed, the right yaw increased. The pilot reported two miles out.
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. True airspeed (TAS) is the difference between the indicated airspeed and actual speed.
Expert insights. Personalized for you.
Let's personalize your content