Finnish propulsion specialist Steerprop has been selected to deliver its next generation contra-rotating propeller (CRP) azimuth propulsions to Lloyd Werft Bremerhaven, which is building a research vessel designed to study, test, and operate on different maritime energy systems under real-life operating conditions.
The new vessel, measuring 48m in length and 11m in breadth, will serve as a floating laboratory for the German Aerospace Centre (DLR). The vessel will become a platform for advancing sustainable shipping solutions, primarily in research voyages lasting from one to several days in the North Sea and Baltic Sea, accommodating up to 20 people onboard.
The order marks the first delivery of Steerprop’s next generation CRP technology, which the company says represents a major leap in propulsion efficiency. The scope includes two Steerprop 14 CRP LM units, each rated at 750kW and designed to Ice Class 1A standards.
The new CRP design introduces pressure lubrication for smaller applications, believed to the first implementation of such a solution. Pressure lubrication minimises mechanical losses, enabling mechanical efficiency up to 98.5% compared to the typical 95%, and enabling enhanced fuel economy and performance.
Prior to the contract award, Steerprop conducted an extensive R&D study to optimise the vessel’s propulsion concept. Model tests with the design propulsors confirmed that the tailored solution would fully support the vessel’s demanding mission profile.
Juho Rekola, Director, Sales and Project Management, Steerprop, said: “Working in close cooperation with the owner and shipyard was crucial to this project. We are proud that our Next Generation of CRP technology will contribute to ground-breaking research on energy systems in maritime industry.”
Beyond energy system trials, the research vessel will provide extensive measuring capabilities, including load, torque, thrust, and ice loads. This makes it not only a platform for DLR’s work but also a valuable resource for Steerprop, other suppliers, and academic partners to conduct independent research. The vessel’s role as a fuel laboratory at sea is considered to align with the maritime industry’s push toward decarbonisation, providing vital data on energy efficiency, fuel performance, and operational impacts in real-world conditions.
The collaboration is said to underline Steerprop’s commitment to developing propulsion solutions that meet the efficiency and sustainability challenges of tomorrow’s shipping industry.
Image: A ship model of the new research vessel at sea (credit: DLR)
