L3Harris Technologies has announced a major milestone in propulsion innovation with the successful self-funded testing of two advanced Rotating Detonation Engines (RDEs), demonstrating a significant step toward flight-ready systems.
The company recently conducted two critical RDE tests at Purdue University. The first test focused on long-duration runs to validate the fundamental physics that determine operability - where and how RDE technology performs optimally. The second test featured a full-scale RDE, demonstrating in a test stand environment the ability to operate across the entire flight range of a relevant mission.
“Completing two successful rotating detonation engine test series within a year underscores the strength and breadth of L3Harris’ propulsion portfolio,” said Scott Alexander, President, Missile Propulsion, L3Harris. “From solid rocket motors and highly loaded grains to ramjets, dual-mode ramjets and next-generation advanced cycles, we deliver innovative propulsion solutions that help the U.S. and allied partners extend range, increase speed and field more capable, mission-ready systems.”
Rotating Detonation Engines represent a state-of-the-art propulsion solution, enabling air-breathing missiles to achieve greater range and efficiency compared to traditional systems. Air-breathing propulsion systems offer a high-performance, low-cost solution capable of meeting the most demanding mission requirements.
Critical elements of the engine were produced using additive manufacturing. This approach helped reduce costs and shorten production timelines.
These breakthroughs align with L3Harris’ long-term strategic goal of providing innovative, mission-critical technologies for aerospace and defense applications.
Development of next generation missile propulsion technology falls under the company’s Advanced Missile Propulsion Technology division.
“These tests helped inform the requirements to increase the operating envelope of future RDE-powered systems,” said George Thum, Director of Advanced Missile Propulsion Technology. “This test series provided valuable feedback on how we make the system applicable for use in the near future, enabling us to deliver next-generation propulsion capability to the warfighter.”
L3Harris has invested significant internal funds to develop RDE ramjet capability for more than a decade. With this successful testing, the company is poised to integrate RDE technology into future flight systems, reinforcing the company’s commitment to innovation and operational superiority.
