Which type of airspeed accounts for errors due to altitude and temperature adjustments?

True Airspeed (TAS) is the type of airspeed that accounts for errors due to altitude and temperature adjustments. When flying at higher altitudes, the air density decreases, which affects the performance and calculations of the aircraft’s speed. True Airspeed is the speed of the aircraft relative to the surrounding air, corrected for these variations in air density caused by altitude and temperature.

At lower altitudes, the relationship between Indicated Airspeed (IAS) and true airspeed is more straightforward, but as you climb, the air becomes less dense, which can lead to discrepancies between the airspeed indicated on the instruments and the actual speed through the air. TAS is especially important for flight planning, navigation, and performance calculations because it provides a more accurate assessment of the aircraft's speed relative to the surrounding atmosphere, thus allowing pilots to make better decisions about aircraft performance, fuel consumption, and flight time estimations.