India’s Mach 8 Leap: How Project Vishnu puts us in the hypersonic club

Traditional supersonic missiles like the BrahMos travel at around Mach 3 (3 times the speed of sound). Hypersonic weapons, by contrast, operate at Mach 5 and beyond. India’s new ET-LDHCM, powered by a scramjet engine, can touch Mach 8 — about 11,000 km/h.