University of Limerick Students Launch Ireland’s First 3D-Printed Rocket Engine

The University of Limerick’s student-led rocketry team, ULAS HiPR, has embarked on a groundbreaking project to design and produce the first 3D-printed liquid rocket engine in the Republic of Ireland, named the Lúin of Celtchar. This innovative initiative is a collaborative effort involving ULAS HiPR, the university itself, and Irish Manufacturing Research (IMR).

Founded in 2022, ULAS HiPR brings together students from various disciplines, including aeronautical, mechanical, software, and design engineering. Their shared goal is to design, manufacture, and launch high-powered rockets, contributing to advancements in space technology. The team’s acceptance into the Race2Space 2026 International Propulsion Competition marks a significant milestone for Irish student-led space propulsion capabilities.

Innovative Manufacturing Techniques

The engine being developed is a high-performance 2 kN, water-cooled, IPA/Nitrous Oxide bi-propellant system. It has been entirely designed by the ULAS HiPR team, showcasing the technical expertise and creativity of the students involved. Currently, the engine is being manufactured at IMR’s Advanced Manufacturing Lab in Mullingar, Co Westmeath, utilizing metal additive manufacturing techniques.

This advanced manufacturing approach allows for the incorporation of complex internal cooling channels and rapid design iterations, significantly enhancing efficiency compared to traditional manufacturing methods. Such capabilities are essential for developing high-performance rocket engines that can meet the demanding requirements of space exploration.

Jay Looney, co-head of ULAS HiPR, expressed his enthusiasm about the project, stating, “The acceptance of our project to Race2Space marks a defining moment not only for ULAS HiPR, but for Ireland’s student space community.” He further emphasized the importance of this achievement, saying, “The selection of the first additively manufactured liquid rocket engine in the Republic of Ireland into the competition validates the technical ambition of our student team, and the strength of collaboration between Irish university students with industry.”

Future Prospects

As the project progresses, the engine will return to the University of Limerick for precision machining and final assembly. This endeavor not only represents a significant step forward for the students involved but also positions Ireland as a rising player in the global aerospace sector.

The collaboration between ULAS HiPR, UL, and IMR exemplifies how educational institutions can partner with industry leaders to foster innovation and inspire the next generation of engineers and scientists. With the development of the Lúin of Celtchar, these students are not just pushing the boundaries of technology; they are also paving the way for future advancements in space exploration.