Nautitech 46 Open Information, Review, Specs

Sailing Performance & Handling

The defining characteristic of the Nautitech 46 Open’s handling is its twin outboard helm stations. Positioned at the extreme aft of each hull, these stations provide the helmsman with an unobstructed view of the sails and the horizon, as well as a direct mechanical link to the rudders. According to a technical review by Sail Magazine, this configuration offers a level of "feel" and feedback through the wheel that is rarely found in catamarans with hydraulic or cable-heavy flybridge steering.

Under sail, the 46 Open benefits from narrow hulls below the waterline, which reduce drag and allow for impressive pointing angles for a cruising catamaran. With a standard sail area of approximately 1,200 square feet, the boat is capable of double-digit speeds in moderate breezes. The use of a self-tacking jib simplifies short-handed sailing, though most performance-oriented owners opt for the optional bowsprit to fly a Code 0 or gennaker. The boat’s motion in a seaway is characterized by a "stiff" feel due to its light weight and wide beam, though the lower center of gravity—afforded by the lack of a flybridge—reduces the hobby-horsing effect often seen in taller multihulls.

Interior Comfort & Variations

The "Open" moniker refers to the seamless integration of the cockpit and the saloon, which are designed to function as a single, expansive living space. By utilizing a large sliding glass door, the transition between the outdoor dining area and the indoor galley is eliminated, creating a social hub that is particularly effective in tropical climates. The saloon itself is intentionally compact compared to "bridge-deck" heavy competitors; it focuses on a functional galley and a navigation station, deferring the primary lounging area to the sheltered cockpit.

The 46 Open was produced in two primary configurations: the "Owner" version and the "Charter" version. The Owner version devotes the entire port hull to a master suite, featuring a large double berth, a desk area, and a spacious head with a separate walk-in shower. The 4-cabin variant offers symmetrical hulls with four double cabins and four heads, making it a popular choice for high-end charter fleets.

A significant sibling model is the Nautitech 46 Fly. Built on the exact same hull as the 46 Open, the Fly version replaces the aft helms with a central flybridge and an elevated sunbathing deck. While the 46 Fly offers superior visibility for docking and more social space on the upper deck, it sacrifices the lower center of gravity and the tactile steering experience found on the Open variant.

Popular Mentions & Media

The Nautitech 46 Open gained significant visibility in the cruising community through its adoption by high-profile circumnavigators and digital nomads. It was famously utilized by the YouTube sailing channel Sailing Zatara, who chose the 46 Open for its balance of speed and safety while crossing the Pacific and Indian Oceans. This real-world testing helped solidify the boat's reputation as a legitimate blue-water voyager rather than just a coastal cruiser. Furthermore, the 46 Open was awarded "European Yacht of the Year" in the multihull category shortly after its debut, a testament to its innovative layout and build quality.

Known Issues & Buyer’s Checklist

Prospective buyers should focus their inspections on areas unique to the Nautitech’s lightweight construction and specific layout:

1. Helm Exposure: The twin aft helms are excellent for sailing feel but leave the helmsman exposed to the elements. Inspect the condition of the aftermarket biminis or sprayhoods, as these are essential for long passages.
2. Engine Access: Engines are located under the aft cabin berths. While this keeps weight centralized, it requires diligent maintenance of the gas struts and seals to ensure heat and noise insulation remain effective. Check for any signs of "sooting" or oil residue on the underside of the mattresses.
3. Gelcoat and Stress Points: Because the 46 Open is lighter and stiffer than many competitors, check the areas around the shroud chainplates and the forestay attachment point for any hairline stress fractures in the gelcoat, which may indicate the boat has been driven hard in heavy seas.
4. Bulkhead Integrity: In early production models, some owners reported the need for reinforcement in the forward bridging sections. Ensure a marine surveyor checks the secondary bonding of the bulkheads to the hull.

Community & Resources

Owners and enthusiasts of this model are primarily served by the Nautitech Owners Association, a dedicated group that shares technical manuals and modification tips. Technical support is also frequently found through the Marc Lombard Yacht Design Group archives, which provide insight into the hull's polar diagrams and performance potential.

The Verdict

The Nautitech 46 Open is a sailor’s catamaran that refuses to sacrifice performance for the sake of "condo-maran" volume. It is best suited for experienced mariners who value the sensation of the wind and the sea but still require a modern, social platform for entertaining.

Pros:

• Exceptional helm feedback and visibility of the sail plan.
• The "Open" concept creates a massive, single-level social area.
• Superior light-wind performance compared to heavier cruising cats.
• High-quality vacuum-infused construction.

Cons:

• Aft helms provide little protection from rain or sun without extensive canvas work.
• Interior saloon lounging space is smaller than that of competitors like Lagoon or Fountaine Pajot.
• Engine noise can be more noticeable in the aft cabins due to their proximity.