Alia Yachts has presented Atlantide, the 50-metre full-custom superyacht built in Antalya as FAST 50 and delivered in July 2026. The yard’s release lists an 11-metre beam, 498 GT, an Alustar aluminium hull, a full carbon superstructure and triple-waterjet propulsion. The quoted top speed is 35 knots.
This is not just another 50-metre delivery note. Atlantide combines substantial volume with a notably low profile and a construction package aimed at speed. Vitruvius Yacht Design drew the exterior, Mulder Design handled naval architecture and Liaigre designed the interior. Alia says fuller photography and further technical information will follow, so the practical point today is to separate the headline from the due-diligence questions.
What Needs To Be Checked?
On a project like this, “35 knots” is not enough. A buyer considering a similar custom yacht should ask for speed curves, fuel burn, noise, vibration, engine-room temperatures, access to the waterjets and the weight logic behind the aluminium hull and carbon superstructure. Warranty responsibility matters too: who owns the integration between yard, designer, naval architect and propulsion suppliers if an issue only appears after the first season?
Our note on CRN’s Cerulean delivery argued that handover begins verification rather than ending the project. Atlantide makes that point even more clearly because technical ambition is part of the yacht’s value.
Value For A Buyer
For an owner, this yacht may be exceptional: fast, low, wide and immediately recognisable. For a buyer’s adviser, it requires a tougher checklist than a more conventional semi-custom yacht. An owner-side broker such as W Yachts should ask not only for the brochure, but also for sea-trial records, commissioning history, an open-defects list and the propulsion-service plan for the yacht’s operating area.
Atlantide is a strong signal for Turkish custom builders because it shows advanced integration capacity. But on a yacht like this, admiration for the profile should come after the sea data, not before it.
Sources
- ALIA Yachts presents the 50m Atlantide · 18/09/2026
- YachtBuyer - Alia Yachts Presents 50m Superyacht Atlantide · 18/09/2026




