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Chemically reacting flow can also cause corrosion of the vehicle's skin, with free-atomic oxygen featuring in very high-speed flows. Hypersonic designs are often forced into blunt configurations because of the aerodynamic heating rising with a reduced radius of curvature. — 53T6 (Mach 17) HTV 2 (Mach 20) Agni-V (Mach 24) DF-41 (Mach 25 ...
Hypersonic flow is a high energy flow. [13] The ratio of kinetic energy to the internal energy of the gas increases as the square of the Mach number. When this flow enters a boundary layer, there are high viscous effects due to the friction between air and the high-speed object.
A hypersonic weapon is a weapon capable of travelling at hypersonic speed, defined as above Mach 5, or above 5 times the speed of sound. [1] Below Mach 1, weapons would be characterized as subsonic, and above Mach 1, as supersonic. Typical Low Earth Orbit atmospheric re-entry speed is Mach 25. [2]
Quarterhorse, the Air Force's next hypersonic aircraft, has taken an epic leap. The SR-71 Blackbird successor is a step closer to breaking the airspeed record.
High-speed flight represents the next frontier. With the ability to travel commercially at speeds near or above Mach 5, we stand on the brink of revolutionizing global mobility, shrinking the vast ...
DARPA once viewed X-51 as a stepping stone to Blackswift, [9] a planned hypersonic demonstrator which was canceled in October 2008. [10] In May 2013, the U.S. Air Force planned to apply X-51 technology to the High Speed Strike Weapon (HSSW), a missile similar in size to the X-51. The HSSW was expected to fly in 2020 and enter service in the mid ...
Both flights reached Mach 20 (high-hypersonic speed) and lost telemetry at 9 minutes of a planned 30-minute mission. The HTV-2's first flight was launched on 22 April 2010. [11] The HTV-2 glider was to fly 4,800 miles (7,700 km) across the Pacific to Kwajalein at Mach 20. [12]
The alliance says its speed has been put at Mach 8, or almost 9,900 kilometers per hour (6,138 mph). Hypersonic is defined as any speed above Mach 5 (3,836 mph).