Fighter Jet Supersonic Boom - A sonic boom that shook buildings and was heard across Ankara on July 23 caused panic on social media.
The explosion was heard almost throughout the Turkish capital around 3:00 in the afternoon. Many locals are flocking to news sites and social media to find out why.
Fighter Jet Supersonic Boom
Officials failed to quickly provide an explanation to the public, fueling rumors that the surge was caused by an accident at a rocket factory in Ankara.
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Other rumors suggested various explanations, including a controlled explosion to build a road and unsubstantiated claims of a terrorist attack.
Almost an hour later, Ankara Governor Erkan Topaka issued a statement, announcing that the cause of the noise was a sonic boom created by an F-16 flying over Ankara for testing by the Turkish Aerospace Industry Modernization Project (TAI). .
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Supersonic speed is the speed of an object that exceeds the speed of sound (Mach 1). For objects traveling in dry air at 20 degrees Celsius (68 degrees Fahrenheit) at sea level, this speed is about 343.2 m/s (1,126 ft/s; 768 mph; 667.1 knots; 1 , 236 km). / hour). Speeds greater than five times the speed of sound (Mach 5) are referred to as supersonic. Flights in which only certain parts of the air surrounding an object, such as the ds of rotating blades, reach supersonic speeds are called supersonic. This usually happens somewhere between Mach 0.8 and Mach 1.2.
Sounds are transmitted as vibrations in the form of pressure waves in an elastic medium. Objects move faster than the speed of sound when objects move faster than the speed at which sound travels through the medium. In gases, sound travels along at different speeds, mainly depending on the molecular mass and temperature of the gas, and pressure has little effect. Since the temperature and composition of air varies greatly with altitude, the speed of sound and Mach numbers for a steadily moving object can change. In water at room temperature, supersonic speed can be considered any speed greater than 1,440 m/s (4,724 ft/s). In solids, sound waves can be polarized longitudinally or transversely and have higher speeds.
In the early 20th century, the term "infrasonic" was used as an adjective to describe sound whose frequency is above the range of normal human hearing. The modern term for this concept is "ultrasonic".
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Etymology: The word ultrasonic comes from two words derived from Latin. 1) above: above and 2) sonus: sound and together mean louder or faster than sound.
The tip of the whip is believed to be the first thing designed to break the sound barrier, producing a loud "crack" (actually a small sonic boom). The wave motion that runs through the whip is what makes it capable of achieving supersonic speeds.
However, it is possible that the first artificial supersonic explosion was caused by a piece of cloth, which stimulated the continuous evolution of the whip.
Most modern firearm projectiles are hypersonic, with shotgun projectiles often approaching velocities, and in some cases
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Most spacecraft are supersonic at least during reentry, although the effects on the spacecraft are reduced due to the lower air pressures. During ASCT, launch vehicles essentially avoid traveling at supersonic speeds below 30 km (~98,400 ft) to reduce air resistance.
Note that the speed of sound decreases somewhat with altitude due to the lower temperatures there (typically up to 25 km). At higher altitudes the temperature begins to rise, with a corresponding increase in the speed of sound.
When an inflated balloon pops, the shredded pieces of latex contract at supersonic speeds, contributing to a screeching noise.
To date, only one land vehicle has officially traveled faster than the speed of sound, the ThrustSSC. The car, driven by Andy Gre, holds the world land speed record, having achieved a two-way average speed of 1,228 km/h (763 mph) in the Black Rock Desert on October 15, 1997.
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The Bloodhound LSR Project plans to attempt the record in 2020 at Hakskepan, South Africa using a jet vehicle and a hybrid rocket vehicle. The aim was to break the existing record and make further attempts in which [members of the] team hoped to reach speeds of up to 1,600 km/h (1,000 mph). The effort was initially led by Richard Noble, who was the head of the ThrustSSC project, but after funding problems in 2018 the team was bought out by Ian Warhurst and renamed Bloodhound LSR. The project was later postponed indefinitely due to the Covid-19 pandemic and the car was put up for sale.
Most modern fighter aircraft are supersonic aircraft. There are no passenger planes in modern times capable of exceeding the speed of sound, but there are supersonic passenger planes, namely the Concorde and the Tupolev Tu-144. Both these airliners and some modern fighters are also capable of supersonic flight, which is a state of supersonic flight without the use of an afterburner. Due to its ability to hyper-roam for several hours and a relatively high frequency of flight over several decades, the Concorde has spent more time flying faster than all other aircraft combined by a wide margin. Since the last Concorde flight was retired on November 26, 2003, no supersonic aircraft has remained in service. Some large bombers such as the Tupolev Tu-160 and Rockwell B-1 Lancer are also hypersonic capable.
The aerodynamics of supersonic aircraft are simpler than subsonic aerodynamics because airfoils at different points along the plane cannot affect each other. Supersonic jets and rocket vehicles require many times more thrust to push the additional aerodynamic drag seen in the supersonic region (about Mach 0.85-1.2). At these speeds, aeronauts and astronauts can direct air around the fuselage without producing new shock waves, but any change in cross-sectional area under the vehicle causes shock waves along the fuselage. Designers use the Supersonic Zone Rule and the Whitcomb Zone Rule to minimize sudden changes in intensity.
The sound source has now broken the sound speed barrier and is traveling at 1.4 times the speed of sound, c (Mach 1.4). Since the source is moving faster than the sound waves it produces, it actually drives the advancing wave front. The sound source will pass a stationary observer before the observer actually hears the sound it makes.
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However, in practical applications, a supersonic aircraft must operate stably in both subsonic and supersonic profiles, so the aerodynamic design is more complex.
The key to getting supersonic clouds is to properly shape the aircraft to be long, thin and close to the "perfect" shape, like a Von Karmann Oggev or a Sears Hack. This led to almost all supersonic cruise aircraft looking very similar to each other, with a very long and longer fuselage and large delta wings, see SR-71, Concorde, etc. Although not ideal for passenger aircraft, this formation is quite adaptable for bomber use.
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