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Noise-generating aircraft propeller. Aircraft noise is noise pollution produced by an aircraft or its components, whether on the ground while parked such as auxiliary power units, while taxiing, on run-up from propeller and jet exhaust, during takeoff, underneath and lateral to departure and arrival paths, over-flying while en route, or during landing.
The primary sources of jet noise for a high-speed air jet (meaning when the exhaust velocity exceeds about 100 m/s; 360 km/h; 225 mph) are "jet mixing noise" and, for supersonic flow, shock associated noise. Acoustic sources within the "jet pipe" also contribute to the noise, mainly at lower speeds, which include combustion noise, and sounds ...
Since a supersonic aircraft must also take off and land at a relatively slow speed, its aerodynamic design must be a compromise between the requirements for both ends of the speed range. One approach to resolving this compromise is the use of a variable-geometry wing , commonly known as the "swing-wing," which spreads wide for low-speed flight ...
The pictures above demonstrate the still amazing visual effects that occur as military aircraft punch through the sound barrier and travel faster than sound itself. More from Business Insider:
The sound barrier or sonic barrier is the large increase in aerodynamic drag and other undesirable effects experienced by an aircraft or other object when it approaches the speed of sound. When aircraft first approached the speed of sound, these effects were seen as constituting a barrier, making faster speeds very difficult or impossible.
Delta Air Lines Flight 1141 N473DA, the Boeing 727-200 in the accident, at LaGuardia Airport in 1980 Accident Date August 31, 1988 (1988-08-31) Summary Crashed on takeoff following runway overrun Site Dallas/Fort Worth Int'l Airport, Euless, Texas, United States 32°52′13″N 097°03′04″W / 32.87028°N 97.05111°W / 32.87028; -97.05111 Aircraft Aircraft type Boeing 727-232 ...
An F/A-18 taking off from an aircraft carrier An Embraer E175 taking off. Takeoff is the phase of flight in which an aerospace vehicle leaves the ground and becomes airborne. For aircraft traveling vertically, this is known as liftoff.
A Delta jet clipped a smaller plane on a taxiway at Hartsfield-Jackson Atlanta International Airport Tuesday morning, cleanly knocking the smaller plane's tail off the aircraft, officials said.