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Doppler radar has the potential to detect NOE flight, but the incoming aircraft has to be within radar range in the first place, and low flight minimizes this possibility by using hills and mountains to break the line of sight (terrain masking), defeating terrestrial air defense radar and in rough enough terrain also airborne early warning. [3]
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 are divided into a number of classes with sub-divisions.
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 affected flights included Virgin Atlantic Flight 22, which departed from Washington Dulles International Airport (IAD) at 10:45 p.m. Saturday and landed in London 45 minutes early due to the ...
DRDO Abhyas test flight on 23 December 2021. As of January 2013, the proof of concept and pre-project trials were completed. The first experimental launch without the main turbojet engine of the Abhyas was held at the Chitradurga Aeronautical Test Range on 23 June 2012 to check the launch and configuration capability.
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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):
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