No matter what style of superyacht someone prefers, everyone wants the same things: comfort and space. Van Oossanen’s managing directors Perry van Oossanen and Niels Moerke (above) have been exploring how to augment both within their patented design. That design is the Fast Displacement Hull Form (FDHF). They’ve identified a few versions so far, including the Fast Displacement XL.
As a reminder, the FDHF incorporates design elements that result in lesser hydrodynamic resistance throughout the full speed range. With typical motoryacht hull shapes, the hydrodynamic resistance means long-range cruising is efficient really only at low speeds. They also therefore run at high speeds for short periods. The FDHF, however, can pursue efficient cruising even at middle-level and higher speeds. Heesen Yachts and Jetten Shipyard have adopted the FDHF for a few projects.
The Fast Displacement XL is for buyers looking to push the limits of LOA within the customary 200-, 300- and 500-gross-ton thresholds. Those thresholds are preferable due to less-complicated regulations, smaller crew requirements, and lower costs of operation. Imagine a 197-foot-plus (60-meter-plus) megayacht complete with three decks, a Bahamas-friendly draft, and a 30-knot top speed within the 500-gross-ton limit. It’s not just plausible; Van Oossanen avers that the Fast Displacement XL is completely possible. The design above, by the studio and Cor D Rover, incorporates the hull. Compare those creature-comfort stats to some existing traditionally hulled 197-footers, and you’ll find gross tonnage between 750 and 900.
Van Oossanen has a patent pending for the Fast Displacement XL. Further benefits of it include 10 percent more interior space and 30 to 40 percent more alfresco space. Those apply to the 500-gross-ton version, as well as 199- and 299-gross-ton versions. The corresponding LOAs for those volumes are 115 feet (35 meters) and about 148 feet (45 meters). In addition, the design studio says that it’s already speaking with clients and builders about bringing the Fast Displacement XL to reality.