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Detailed explanation-1: -NEW DELHI: India on Friday tested its own hypersonic technology demonstrator vehicle (HSTDV) powered by a scramjet engine, amid the ongoing race among China, Russia and the US to manufacture manoeuverable hypersonic weapons that fly over five times the speed of sound and can negate missile defence systems.

Detailed explanation-2: -Th HSTDV was tested for the first time by the Defence Research and Development Organisation in 2019. It is an unmanned aircraft built for flying at hypersonic speed (five times greater than that of sound).

Detailed explanation-3: -This type of engine can operate up to speeds of Mach 6 (4,600 mph; 7,400 km/h).

Detailed explanation-4: -HSTDV can cruise at a speed of Mach 6, or six times the speed of sound, and rise up to an altitude of 32.5km in just 20 seconds. On Monday, when DRDO tested the HSDTV with the help of Agni missile boosters, it successfully achieved an altitude of over 30,000 ft in just 22 seconds at a speed of Mach 6.

Detailed explanation-5: -Hypersonic glide vehicles are launched from a rocket in the upper atmosphere before gliding to a target at speeds of more than five times the speed of sound, or about 3,853 miles (6,200 km) per hour.