Lloyd’s Register (LR) has granted Approval in Principle (AiP) for a nuclear-hybrid power concept developed with Australia-based ship design firm Seatransport Pty Ltd.
The design integrates Micro Modular Reactors (MMRs) with conventional diesel-electric systems on 73-metre and 90-metre amphibious stern landing vessel (SLV) platforms.
LR said the concept demonstrates how licensable MMRs in the 1.2 MW to 2.6 MW range can be safely combined with proven propulsion systems to deliver extended range, reduced fuel dependence and lower emissions.
A recently launched 73m conventionally powered SLV served as the reference platform, with sea trials validating the performance assumptions behind the nuclear-hybrid configuration.
Seatransport’s SLV design has been in operation for more than 25 years. Incorporating nuclear-hybrid capability would enable an effectively unlimited operational range and extended endurance, particularly for remote logistics and beach landing missions.
The MMR units remain under technical and regulatory review, with wider deployment anticipated in the early 2030s.
