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The Lockheed SR-71 Blackbird is the current record-holder for a crewed airbreathing jet aircraft. An air speed record is the highest airspeed attained by an aircraft of a particular class. The rules for all official aviation records are defined by Fédération Aéronautique Internationale (FAI), [1] which also ratifies any claims. Speed records ...
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. Traditionally it is measured using an analogue TAS indicator, but as GPS has become available for civilian ...
Airspeed is commonly given in knots (kn). Since 2010, the International Civil Aviation Organization (ICAO) recommends using kilometers per hour (km/h) for airspeed (and meters per second for wind speed on runways), but allows using the de facto standard of knots, and has no set date on when to stop.
Airspeed Range Ceiling T/O Weight Engine power 1905 60.91 km/h (37.85 mph) USA Wilbur Wright Flyer III October 5, 1905 38.95 km (24.2 miles) USA Wilbur Wright Flyer III October 5, 1905 15 m (50 ft) USA Wilbur Wright Flyer III September 28, 1905 388 kg (855 lb) USA Wright Brothers Flyer III 37 kW (50 hp) France Léon Levavasseur Antoinette 1907
A primary flight display with the indicated airspeed (IAS) displayed in the form of a vertical "tape" on the left. Indicated airspeed (IAS) is the airspeed of an aircraft as measured by its pitot-static system [ 1 ] and displayed by the airspeed indicator (ASI). [ 2 ] This is the pilots' primary airspeed reference.
With the widespread use of GPS and other advanced navigation systems in cockpits, the first application is rapidly decreasing in importance – pilots are able to read groundspeed (and often true airspeed) directly, without calculating calibrated airspeed as an intermediate step. The second application remains critical, however – for example ...
Flight plans are documents filed by a pilot or flight dispatcher with the local Air Navigation Service Provider (e.g., the FAA in the United States) prior to departure which indicate the plane's planned route or flight path. [ 1 ] Flight plan format is specified in ICAO Doc 4444. They generally include basic information such as departure and ...
Equivalent airspeed. In aviation, equivalent airspeed (EAS) is calibrated airspeed (CAS) corrected for the compressibility of air at a non-trivial Mach number. It is also the airspeed at sea level in the International Standard Atmosphere at which the dynamic pressure is the same as the dynamic pressure at the true airspeed (TAS) and altitude at ...