India Tests New Rotating Detonation Engine—RDE Explained

India is on the verge of an aerospace revolution that will drastically change how missiles and drones operate. In a major breakthrough, Indian defense startup D-Propulse successfully tested a state-of-the-art Rotating Detonation Engine (RDE) at a DRDO facility in Hyderabad. Unlike conventional jet engines or scramjets that rely on steady combustion, an RDE uses continuous supersonic detonation waves to burn fuel. This pressure-gain combustion makes the engine 15 to 25 percent more efficient than current designs! What does this mean for the military? Hypersonic missiles will fly much farther, and combat drones will stay in the air significantly longer without needing larger frames or extra fuel. Paired with an advanced aerospike nozzle, this indigenous technology will drastically reduce India's reliance on foreign engine suppliers. Join us as we break down the science of how a Rotating Detonation Engine works, what it means for the future of Indian defense, and why D-Propulse is aiming for flight tests by 2027!