"Supersonic" redirects here. For other uses, see Supersonic (disambiguation).
A United States Navy F/A-18F Super Hornet in transonic flightU.S. Navy F/A-18 approaching the sound barrier. The white cloud forms as a result of the supersonic expansion fans dropping the air temperature below the dew point.[1][2]
Supersonic speed is the speed of an object that exceeds the speed of sound (Mach 1). For objects traveling in dry air of a temperature of 20 °C (68 °F) at sea level, this speed is approximately 343.2 m/s (1,126 ft/s; 768 mph; 667.1 kn; 1,236 km/h). Speeds greater than five times the speed of sound (Mach 5) are often referred to as hypersonic. Flights during which only some parts of the air surrounding an object, such as the ends of rotor blades, reach supersonic speeds are called transonic. This occurs typically somewhere between Mach 0.8 and Mach 1.2.
Sounds are traveling vibrations in the form of pressure waves in an elastic medium. Objects move at supersonic speed when the objects move faster than the speed at which sound propagates through the medium. In gases, sound travels longitudinally at different speeds, mostly depending on the molecular mass and temperature of the gas, and pressure has little effect. Since air temperature and composition varies significantly with altitude, the speed of sound, and Mach numbers for a steadily moving object may change. In water at room temperature supersonic speed can be considered as any speed greater than 1,440 m/s (4,724 ft/s). In solids, sound waves can be polarized longitudinally or transversely and have even higher velocities.
Supersonic fracture is crack motion faster than the speed of sound in a brittle material.
^"APOD: 2007 August 19 - A Sonic Boom". antwrp.gsfc.nasa.gov.
^"F-14 CONDENSATION CLOUD IN ACTION". www.eng.vt.edu. Archived from the original on 2004-06-02.
Supersonicspeed is the speed of an object that exceeds the speed of sound (Mach 1). For objects traveling in dry air of a temperature of 20 °C (68 °F)...
A supersonic aircraft is an aircraft capable of supersonic flight, that is, flying faster than the speed of sound (Mach 1). Supersonic aircraft were developed...
A supersonic transport (SST) or a supersonic airliner is a civilian supersonic aircraft designed to transport passengers at speeds greater than the speed...
the speed of sound. At Mach 0.65, u is 65% of the speed of sound (subsonic), and, at Mach 1.35, u is 35% faster than the speed of sound (supersonic). Pilots...
emanating from the supersonic object. Rather, the boom is a continuous effect that occurs while the object is traveling at supersonicspeeds and affects only...
[citation needed] Although "subsonic" and "supersonic" usually refer to speeds below and above the local speed of sound respectively, aerodynamicists often...
A scramjet (supersonic combustion ramjet) is a variant of a ramjet airbreathing jet engine in which combustion takes place in supersonic airflow. As in...
afterburners. Aircraft such as the SR-71 Blackbird are designed to cruise at supersonicspeed with afterburners enabled. Some fighter jets are capable of supercruise...
engine to provide air for combustion. Ramjets work most efficiently at supersonicspeeds around Mach 3 (2,300 mph; 3,700 km/h) and can operate up to Mach 6...
variable engine intake ramps, and reheat for take-off and acceleration to supersonicspeed. Constructed out of aluminium, it was the first airliner to have analogue...
Jet Age, when it proved suitable for high-speed subsonic and supersonic flight. At the other end of the speed scale, the Rogallo flexible wing proved a...
approaching supersonic flight in this high drag regime. Flying faster than sound produces a sonic boom. In dry air at 20 °C (68 °F), the speed of sound is...
A supersonic business jet (SSBJ) is a business jet travelling above the speed of sound: a supersonic aircraft. Some manufacturers are designing or have...
barrier to the attainable speed of aircraft, commonly referred to as the "sound barrier." In truth, the barrier to supersonic flight was merely a technological...
cruise missiles are capable of traveling at high subsonic, supersonic, or hypersonic speeds, are self-navigating, and are able to fly on a non-ballistic...
drag at transonic speeds which occur between about Mach 0.75 and 1.2. For supersonicspeeds a different procedure called the supersonic area rule, developed...
around an object at a speed that generates regions of both subsonic and supersonic airflow around that object. The exact range of speeds depends on the object's...
A380 in 2005. Supersonic airliner flights, including those of the Concorde, have been limited to over-water flight at supersonicspeed because of their...
respectively. Shock waves are formed when a pressure front moves at supersonicspeeds and pushes on the surrounding air. At the region where this occurs...
Objects moving at speeds greater than the speed of sound (Mach1) are said to be traveling at supersonicspeeds. In Earth's atmosphere, the speed of sound varies...
A supersonic aircraft is an aircraft which can exceed the speed of sound (Mach 1.0) in level flight. List of aircraft Supersonic aircraft Sound barrier...
variation, may refer to: Mach number for twice the speed of sound Supersonicspeed of 2 times the speed of sound Ford Mach 2, a 1967 car; see List of Ford...
turbofan engine under development by Boom Technology for use on its Overture supersonic airliner. The engine is designed to produce 35,000 pounds (160 kN) of...
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