Science and Technology India entered the hypersonic race with the HSTDV, ignited a scramjet in flight at 7,400 km/h, sustained combustion for 20 seconds at an altitude of 30 km, and demonstrated that New Delhi also wants to master air-breathing engines at brutal speeds close to the extreme limit of the X-15. Valdemar Medeiros 02/06/2026 at 16:46
Science and Technology Supersonic Plane Can Reach Mach 5, Exceed 6,000 km/h, Use Turbine-Free Scramjet Engine, Withstand Extreme Temperatures on the Airframe, and Complete Missions in Minutes Alisson Ficher 17/02/2026 at 16:30
