New Delhi, April 26 -- The Defence Research & Development Laboratory (DRDL), a Hyderabad-based laboratory of the Defence Research and Development Organisation (DRDO), has achieved a significant breakthrough in hypersonic weapon technology.

On April 25, 2025, DRDL successfully conducted long-duration testing of an Active Cooled Scramjet Subscale Combustor, operating for more than 1,000 seconds at the newly established state-of-the-art Scramjet Connect Test Facility in Hyderabad

This achievement builds upon the earlier test conducted in January 2025, which demonstrated 120-second operation.

The successful extended duration test signifies that the system will soon be ready for full-scale flight-worthy combustor testing, marking a crucial ...