Jakarta, INTI - Badan Riset dan Inovasi Nasional (BRIN) continues to strengthen Indonesia’s maritime technological independence. This time, through its Pusat Riset Teknologi Hidrodinamika (PRTH), BRIN has partnered with PT Chroma International in a strategic research initiative to develop an Underwater Propulsion Unit (UPP), also known as a swimmer thruster.
The collaboration was formalized through the signing of a cooperation agreement between PRTH BRIN Head Teguh Muttaqie and PT Chroma International President Director Dadang Furqon Erawan in Surabaya on Thursday, February 5, 2026. This partnership forms part of the BRIN Goes to Industry program, which aims to strengthen synergy between research and manufacturing to accelerate innovation commercialization.
Advancing Electric Propulsion for Safer and More Efficient Diving
Teguh emphasized that the research focuses on refining an electric propulsion system integrated with ergonomic and mechanical aspects.
“With the hydrodynamics expertise we possess, PRTH will optimize the propulsion system, improve efficiency and safety, and ensure an ergonomic design so divers can be more comfortable and have better control underwater,” he said.
He added that the UPP is designed as an underwater mobility assistance device based on an integrated electric propulsion system. The technology is expected to support diving activities more effectively and safely.
PRTH BRIN Senior Engineer Taufiq Arif Setyanto explained that the research has clear technical targets. The UPP prototype is expected to operate effectively for up to one hour of diving with an operational speed of 3.5 to 4 knots. According to him, the technology is highly relevant to Indonesia’s vast marine tourism potential as well as operational needs for underwater security and surveillance, including support for Indonesian Navy missions.
A Scientific, Stage-Based Development Process
Taufiq outlined that the development process follows a systematic approach through two main stages: preparation and implementation. During the preparation phase, the PRTH BRIN research team conducted a comprehensive literature review to map global developments in swimmer thruster technology. From this assessment, key design parameters were identified, including thrust requirements, hydrodynamic efficiency, and diver safety and ergonomics.
At the same time, essential materials such as propellers, ducted systems, and shafting were prepared, along with the assembly of battery packs and waterproof electronic systems that meet underwater operational standards. This stage served as a critical foundation to ensure all components met technical specifications from the outset.
In the implementation phase, the team developed detailed design models followed by numerical simulations to test hydrodynamic performance prior to manufacturing. Mechanical and electronic components were then produced and assembled into an integrated propulsion system.
Subsequent stages involved performance testing in controlled environments, including data acquisition and analysis to measure thrust, energy efficiency, system stability, and durability. The results were used to evaluate and refine the design.
“This scientific stage-based approach ensures that every component is not only functionally designed but also validated through measurable data and testing, so the final product meets industry standards and is ready for commercialization,” Taufiq explained.
Meanwhile, PT Chroma International President Director, Dadang Furqon Erawan stated that his company is prepared to support the manufacturing of propulsion unit components, including batteries and waterproof electronic systems that comply with industrial standards.
“This collaboration is expected not to stop at the research stage alone, but to continue through commercialization into high-quality domestic products,” he concluded.
Through the synergy between BRIN’s research capabilities and its industrial partner’s manufacturing expertise, the development of the UPP represents a concrete step toward strengthening Indonesia’s maritime technological sovereignty. It also opens market opportunities across marine tourism, underwater exploration, and national defense sectors. With this research–industry collaboration spirit, BRIN once again reinforces its role as a driving force of strategic national innovation.
Conclusion
The development of the Underwater Propulsion Unit marks a concrete step in strengthening Indonesia’s maritime technology sovereignty through research–industry collaboration. By combining BRIN’s scientific expertise with industrial manufacturing capabilities, the initiative not only accelerates innovation commercialization but also opens new market opportunities across marine tourism, underwater exploration, and national defense. The project reflects Indonesia’s growing commitment to building advanced domestic technologies that support both economic growth and strategic resilience.
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