Dynamiq GTT 165 Superyacht - Underwater Foils for the Best Marine Experience
The Dynamiq GTT 165 is a 50-metre foiling superyacht that uses a patented system of underwater hydrofoils to reduce drag, improve stability, and extend range at high speed. Built from a lightweight sealium aluminum alloy and designed by Dobroserdov Design with naval architecture by Van Oossanen, the GTT 165 takes 28 months to build and represents one of the most technically advanced production superyachts available today.
A Foiling Hull: How the GTT 165 Moves Through Water
The defining technical feature of the GTT 165 is its dual hydrofoil system. A Hull Vane sits fixed beneath the stern, developed by Dutch naval architects Van Oossanen. It acts on the stern wave pattern and generates hydrodynamic lift oriented partially forward, effectively reducing hull resistance. A second T-wing foil is mounted at the bow, developed in collaboration with Najad Dynamics, a specialist in marine motion control. Together, these two interacting foils reduce drag, lower fuel consumption, and stabilise the hull in rough water without requiring active stabilisers.
The hull itself is formed from Sealium, a certified marine-grade aluminum alloy (5383) that weighs roughly three times less than an equivalent steel structure. The round-bilge hull form further reduces resistance at speed. Twin MTU V8 engines push the yacht to a top speed of 20 knots, with a transatlantic cruising speed of 17 knots. A higher-powered GTS 165 variant reaches 25 knots for those prioritising transfers over range.
Interior Layout and Amenities
Van Oossanen's naval architecture meant the design team at Dobroserdov did not have to trade liveable space for performance. The GTT 165 accommodates 10 to 12 guests across five or six staterooms. Onboard amenities include a cinema lounge, a bar, a spa and gym zone, and a 19.5-metre sundeck with a jacuzzi and solar panels integrated into the roof.
Design Credentials
Exterior styling comes from Dobroserdov Design, while Van Oossanen Naval Architects holds the patent on the round-bilge displacement hull form used in the GTT 165. The combination of exterior designers and naval architects working from the outset produced a yacht where the foil system is structural rather than an afterthought. Full specifications and model options are available on the official Dynamiq GTT 165 page. Designboom published a detailed breakdown of the foil technology at launch, covering how the bow and stern foils interact.
Browse the full selection of exceptional watercraft at TheArsenale, including the Canados Gladiator luxury yacht, the SAY29 Runabout Yacht, and the Super Yacht Sub 3 personal submarine, or explore the complete TheArsenale boat collection.
