Friede & Goldman (F&G) has received Main Scantling Approval from DNV for its WindSetter 146 wind turbine installation vessel design. The approval letter was presented to F&G at the DNV booth during WindEurope 2026 in Madrid, Spain.
The approval confirms that the structural design, arrangements and stability of the WindSetter 146 meet DNV’s applicable class requirements. With this milestone completed, the design is positioned for contract and construction.
The WindSetter 146 is a purpose-built WTIV with a length of 146 m. It is equipped with a 3,200 tonnes safe working load leg-encircling crane and has a maximum hook height of 177 m above the main deck, allowing it to transport and install wind turbines above 20 MW.
The vessel is designed for operations in water depths of up to 80 m, supporting offshore wind projects in deeper-water locations across Europe, Asia and the United States. It is also based on a dual-fuel LNG-ready design to support lower emissions and compliance with environmental regulations.
Its jacking and guide system is designed to extend service life and reduce maintenance requirements.
DNV said the approval confirms that the vessel’s basic design meets its classification standards and that it expects to continue working with F&G as the design moves toward detailed design and construction.
F&G said the approval also supports its wider WindSetter WTIV range, which includes the WindSetter 94M and 114M multi-purpose vessels for combined O&M and T&I roles, as well as the WindSetter 156 for heavy-lift monopile and XXL turbine installation.
Following the Main Scantling Approval, F&G said it is engaging with vessel owners and shipyards to advance the WindSetter 146 toward construction contracts.
