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The Lockheed SR-71 Blackbird holds the official Air Speed Record for a crewed airbreathing jet engine aircraft with a speed of 3,530 km/h (2,190 mph). The record was set on 28 July 1976 by Eldon W. Joersz and George T. Morgan Jr. near Beale Air Force Base, California, USA.
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.
mph: IAS km/h: 30,000 ft (9,100 m) 370 595 25,000 ft (7,600 m) 410 660 ... Ground speed shows the actual speed that the aircraft uses compared to the ground.
The X-15 set speed and altitude records in the 1960s, crossing the edge of outer space and returning with valuable data used in aircraft and spacecraft design. The X-15's highest speed, 4,520 miles per hour (7,274 km/h; 2,021 m/s), [ 1 ] was achieved on 3 October 1967, [ 2 ] when William J. Knight flew at Mach 6.7 at an altitude of 102,100 feet ...
The plane would later achieve a speed of just over 2,000 miles per hour, nearly 50% faster than Concorde. “The overall design of the XB-70 was a thing of beauty,” says Tony Landis, a historian ...
Stall speed or minimum steady flight speed for which the aircraft is still controllable. [7] [8] [9] V S 0: Stall speed or minimum flight speed in landing configuration. [7] [8] [9] V S 1: Stall speed or minimum steady flight speed for which the aircraft is still controllable in a specific configuration. [7] [8] V S R: Reference stall speed. [7 ...
The airspeed indicator (ASI) or airspeed gauge is a flight instrument indicating the airspeed of an aircraft in kilometres per hour (km/h), knots (kn or kt), miles per hour (MPH) and/or metres per second (m/s).
Today piston engines are used almost exclusively on light, general aviation aircraft. The official speed record for a piston plane was held by a modified Grumman F8F Bearcat, the Rare Bear, with a speed of 528.315 mph (850.241 km/h) on 21 August 1989 at Reno, Nevada, United States of America.