Lürssen’s 114.2m NAUSICAÄ Enters Fleet with Ice-Class Hull and Glass Skydome

Lürssen’s 114.2-metre NAUSICAÄ, formerly Project COSMOS, joined the delivered fleet on 23 May 2026 and remains one of the yard’s defining technical projects of the year. The yacht designed throughout by Marc Newson brings together an Ice Class 1D hull, complex curved glazing and a diesel-electric propulsion plant, alongside an unusually ambitious tender dock.

From Project COSMOS to a named yacht

Lürssen’s official delivery statement identifies NAUSICAÄ as the former COSMOS project and credits Australian industrial designer Marc Newson with both exterior and interior. This resolves the earlier project designation without implying that the yacht has been launched or delivered again in late September.

The hull is reinforced to Ice Class 1D for light-ice operation, while her design also accommodates warm-water cruising. A class notation describes a defined technical capability, not permission to operate in every polar condition without passage planning and professional assessment.

Seven curved panels form the Skydome

The Skydome is built from seven curved glass panels, each measuring 3,000 by 2,800 millimetres and weighing approximately 1,050 kilograms. Lürssen says full-size mock-ups were used to test the hot-bending and lamination process before producing the final panes.

The dome creates a 56-square-metre owner’s office with a stated 3.15-metre head height and adjoining sky terrace. Bronze shutters travel on a circular rail to manage sunlight, turning a demanding structural feature into an occupied, functional space.

A tender dock rated for sixteen tonnes

A large dry dock handles the 12.5-metre sportfishing tender through a sledge system extending beyond the swim platform. The yard quotes a 16-tonne load rating, and the rails retract after deployment to free the compartment for a different onboard use.

Above, a long glazed band runs around the upper deck and leads to an observation lounge beneath the bow helipad. The main deck instead uses a two-level atrium as an art gallery, with a balcony on the deck above and hospitality areas arranged around it.

Five engines and electric pod drives

The diesel-electric plant includes two primary and three auxiliary engines driving fully electric azimuth pods. Lürssen says the batteries can provide up to two megawatts for hotel systems, enabling periods of quiet operation without local exhaust from active engines.

Provision for a future methanol fuel cell is part of the builder’s design, but that provision is not proof that a cell is already installed or commercially operational. The source record is the yard’s May delivery and current fleet description, supported by an official NAUSICAÄ photograph rather than unrelated yacht imagery.

Official sources: www.lurssen.com; www.lurssen.com. Historical delivery milestones and existing yacht-design features are identified as such, not presented as new events today.