From RiverShark to RhineRay: Continuing the Submarine Legacy at Rhine-Waal

For many students at Rhine-Waal University of Applied Sciences (HSRW) in Kleve, Germany, the European International Submarine Races are more than just a competition. Over the years, several student teams have taken on the challenge of designing and building human-powered submarines, gaining practical experience that goes far beyond the classroom. Earlier projects from the university carried the name RiverShark, inspired by Kleve’s strong connection to water and the historic canal that runs through the city. Those teams laid the groundwork for what has become a small but proud tradition.

A distinctive aspect of the submarines developed at HSRW has always been the combination of traditional engineering with biomimetic inspiration during both the design and development phases. When our new team began to form, we spent time looking back at the experiences and participation of previous groups. Their work helped us understand not only the technical challenges involved but also the creative thinking that has always been part of these projects.

At the same time, several members of the current team share a strong interest in biomimetics and the mechanics of animal movement. During early discussions, the idea emerged to take inspiration from the smooth and efficient swimming motion of manta rays. From this concept, the name RhineRay was born, combining a reference to the Rhine region with the biological inspiration behind the design. In many ways, it represents both a continuation of earlier ideas and a fresh direction for the team.

Like the university itself, the team is highly international, bringing together students from different countries and study programs. Engineers, sustainability students, and business students all contribute their perspectives as the project develops. While the technical work is only beginning, the collaborative spirit within the team already reflects what makes the submarine races so special: creativity, curiosity, and the chance to work together on something truly ambitious.