The X-Treme X-105 by Holterman Shipyard, christened Lady Fleur, features the new stabilizer system Waveless by CMC Marine - moreover, the ARGO and Directa 120 systems.

The fresh and masculine exterior comes from Bernd Weel Design, while Diana Yacht Design did the calculations, and Trimm Design drew the interior design. Alongside the eye-catching exterior design, another great feature is the tender launching system aft that welcomes an 11m RIB on a 32m yacht. Moreover, there is an integrated 5m pool. Another place for water toys, jet skis, and a 3.45m boat is amidships. The tender launching system is also a pool.

With its twin Volvo D16MH engines (551 kW each), the X-105 can reach a top speed of 15 knots and has a range of 2,400 nautical miles at its cruising speed of 10 knots.

“The owners have lots of experience with fast boats and wanted to switch to an extremely comfortable and relaxed yacht that would be ideal for three generations of their family,” Holterman explains. “Their philosophy revolved around three key issues: enhanced safety (hence the high bulwarks), hassle-free enjoyment of time spent onboard (hence the
emphasis on redundancy throughout) and a radical design that would make the most of the spaces they actually use. The latter demand and its implications for the aft section of the boat led us on a journey that has basically ripped up the rule book for boats this size.”

Monohull or Catamaran?

“The fore and amidships section of Lady Fleur is a conventional monohull yacht with accommodations, lounge, and crew cabins, ending aft with a full-beam garage for the two jet-skis and other toys that are launched by side hatches. The aft section is built in a catamaran style with two mini-hulls welded to the aft bulkhead for the engines plus two other technical compartments, one containing two watermakers and air conditioning units, the other housing almost all the electrical equipment.

The two engine rooms are separated by a construction that lowers down and can be submerged 2.5 meters to create a draught of one meter below water. This allows the tender to be easily wet-launched or retrieved, with complete comfort for those alighting or disembarking. Within that platform we have created a movable floor which picks up seawater to create a five-metre long pool that ranges from 30 to 150 cm in depth. This is a totally custom-developed system by a team of experts from across the design and
engineering spectrum.”


The X-105 has four electric fin stabilizers by Waveless that belongs to CMC Marine. The company engineered this system for yachts from 12 to 40 meters. Furthermore, they also deliver the electric steering system Directa 120 and the control system ARGO.

Four guest cabins are placed on the lower deck, together with the crew area. The owner suite is on the main deck.

See also: The Holterman Xtreme 78 Sport.

Interior of the X-Treme 105

Main Specifications of X-105

Length Overall









Maximum Speed