Alia Reveals 50m ATLANTIDE With 35-Knot Triple-Waterjet Propulsion

FAST 50 emerges under her completed name

Alia Yachts has presented Atlantide, the 50-metre full-custom yacht previously developed as FAST 50, in an announcement issued on 18 September 2026. The Antalya-built vessel was delivered in July, so this update reveals her completed identity and specifications rather than announcing a new launch or construction order.

Alia reports an 11-metre beam and an internal volume of 498 GT, with the yacht configured around a low exterior profile and generous uninterrupted deck areas. Those figures place the focus on an individually engineered project, not a newly introduced production model with an announced series of buyers.

Aluminium, carbon and three waterjets

The builder specifies an Alustar aluminium hull paired with a full carbon superstructure to control weight throughout the yacht. Three waterjets form the propulsion package, and Alia quotes a maximum speed of 35 knots without presenting this announcement as an independently witnessed sea-trial certificate.

Weight, structural integration and propulsion performance are particularly relevant to the design because the vessel combines a 50-metre length with a relatively low silhouette. Owners comparing fast custom yachts should also consider operational range, fuel consumption and service access, which are not quantified in the yard's brief announcement.

Design team and onboard arrangement

Vitruvius Yacht Design created the exterior, Mulder Design developed the naval architecture and Liaigre handled the interior design. Alia brought the different disciplines together in construction, while the finished yacht uses extensive glazing and broad aft terraces to connect accommodation and external spaces.

The September release presents Atlantide as a completed yacht following her July delivery rather than an unbuilt concept. Further information about ownership, commercial availability and any future show appearance should be confirmed separately instead of being inferred from her publicity photographs.