With the demand for more efficient solutions for aging wind farms, NR Marine Services NR Marine Services has taken a strategic step by commissioning Chartwell Marine to design a new class of crew transfer vessel (CTV). Named the Defiant Class, this model seeks to address traditional turbine access needs using updated technology, state-of-the-art materials and adaptable propulsion systems.
Defiant Class features
In recent years, the CTV sector has CTV industry has focused on large, HS-OSC-compliant vessels, neglecting the construction of smaller units. The Defiant answers that gap, as it is a 20-meter CTV with a flush bow, step-free access and an optimized interior design that includes separate toilets, galley and modular options for shelving and seating. It complies with Edition 3 of the Workboat Code and IMO Tier 3 emissions requirements.
The Defiant Class is designed to adapt to varying conditions of coastal projects. It can integrate either a Quad IPS system or a Hamilton Waterjet Hamilton WaterjetThis allows it to operate in shallow water without compromising power-to-weight ratio or mechanical reliability. This flexibility is essential in an environment where site requirements change considerably.
Technical collaboration for older turbines and efficiency
The project is the result of a technical collaboration between Chartwell Marine, NR Marine Services and Diverse Marine. Chartwell’s Andy Page noted that the new model combines experience in hull design with a configuration that reduces costs without losing performance. For his part, Richard Thurlow of NR Marine mentioned that the Defiant responds to an internal fleet analysis that reveals a concrete opportunity to replace 10 to 15 year old vessels.
With the market increasingly focused on operational efficiency and sustainability, the Defiant Class CTV represents a pragmatic and up-to-date solution. Designed in the UK, it seeks to leverage the strengths of the local supply chain and position itself as a viable alternative for projects requiring access to older turbines without compromising comfort or functionality.
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Source and photo: Chartwell Marine
