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2. Equivalent airspeed - Wikipedia

   en.wikipedia.org/wiki/Equivalent_airspeed

   where a 0 is 1,225 km/h (661.45 kn) (the standard speed of sound at 15 °C), M is the Mach number, P is static pressure, and P 0 is standard sea level pressure (1013.25 hPa). Combining the above with the expression for Mach number gives EAS as a function of impact pressure and static pressure (valid for subsonic flow):

3. True airspeed - Wikipedia

   en.wikipedia.org/wiki/True_airspeed

   Here the speed is displayed both in knots (kn) and miles per hour (mph). The true airspeed (TAS; also KTAS, for knots true airspeed) of an aircraft is the speed of the aircraft relative to the air mass through which it is flying. The true airspeed is important information for accurate navigation of an aircraft.

4. Calibrated airspeed - Wikipedia

   en.wikipedia.org/wiki/Calibrated_airspeed

   A free windows calculator which converts between various airspeeds (true / equivalent / calibrated) according to the appropriate atmospheric (standard and not standard!) conditions; A free android calculator which converts various airspeeds according to atmospheric characteristics; Newbyte airspeed converter

5. Indicated airspeed - Wikipedia

   en.wikipedia.org/wiki/Indicated_airspeed

   convert CAS to equivalent airspeed (EAS) by allowing for compressibility effects (not necessary at slow speed or low altitude); EAS is used by aircraft engineers and some very high-altitude flying aircraft such as the U-2 and the SR-71; convert EAS to true airspeed (TAS) by allowing for differences in density altitude.

6. Thrust-specific fuel consumption - Wikipedia

   en.wikipedia.org/wiki/Thrust-specific_fuel...

   Air flight speed counteracts the jet's exhaust speed. (In an artificial and extreme case with the aircraft flying exactly at the exhaust speed, one can easily imagine why the jet's net thrust should be near zero.) Moreover, since work is force (i.e., thrust) times distance, mechanical power is force times speed. Thus, although the nominal SFC ...

7. Conversion of units - Wikipedia

   en.wikipedia.org/wiki/Conversion_of_units

   The factor–label method can convert only unit quantities for which the units are in a linear relationship intersecting at 0 (ratio scale in Stevens's typology). Most conversions fit this paradigm. An example for which it cannot be used is the conversion between the Celsius scale and the Kelvin scale (or the Fahrenheit scale). Between degrees ...