Lloyd’s Register introduces new class notation for fin stabilisers

For decades, fin stabilisers have been considered a ‘nice to have’ feature rather than an essential component of a ship. However, with the increasing demand for enhanced passenger experiences on modern cruise ships, fin stabilisers have become integral to providing a smooth and enjoyable journey. Located under the waterline on the side of a ship’s hull, fin stabilisers provide a roll damping effect, counteracting the ship’s natural roll and ensuring a stable voyage. 

The new class notation will cover the strength, machinery, and control aspects of fin stabilisers, including their integration into the ship’s hull. While it will not assess the performance of the fin stabiliser in improving sea-keeping, it will ensure that the stabiliser is functional and reliable. This development is particularly beneficial for cruise operators, as it addresses the critical role of fin stabilisers in enhancing passenger safety and comfort. 

The sudden loss of a stabiliser can create immediate safety risks for passengers and lead to extended periods of reduced guest satisfaction until repairs are completed. With the new class notation, operators can significantly reduce the risk of financial losses from unscheduled dry docking and reputational damage caused by poor guest experiences. 

Lizzie McCaig, Rule Development Team Lead, Lloyd’s Register, said: “This new class notation demonstrates LR’s commitment to evolving its rules to meet the needs of its clients. While fin stabilisers are not classified as safety items, apart from their attachment to the hull, LR recognises their importance in the overall operation of the ship and the experience of passengers.  

“By including fin stabilisers in the classification rules, LR is taking proactive steps to support shipowners and reduce their risks.”