BoatsNautitech 46 Open

Nautitech 46 Open

Catamaran, twin keels · Fractional Sloop · First built 2016

A 13.79-metre catamaran featuring Roseo Design interiors and available in a flybridge configuration

Designed by Marc Lombard & Roseo Design.

LOA
Beam
Draft (max)
Displacement
Hull type
Catamaran Twin Keel

See her sail

The Nautitech 46 Open, on the water

The fleet's own footage — the truest look at how she really moves.

Footage from Catamaran Mistertong

Is it for you?

Character

Where this design lands on the numbers a shopper trusts — read straight from her own ratios.

LightHeavy

117 — light for her waterline, so she is easily driven and quick to accelerate.

Displacement / length 117
EasygoingPowered-up

23.8 — a lot of sail for her weight; powered-up and eager, a real performer.

Sail area / displacement 23.8

What the fleet has seen

The Nautitech 46 Open, as the fleet has seen it

Derived from the videos the fleet has analysed of this model. ▶ marks open the moment aboard.

The Nautitech 46 OPEN is a 13.8-meter fractional sloop catamaran designed by Marc Lombard and Roseo Design, built by Nautitech Catamarans since 2016. It features a twin keel hull and displaces 10,800 kg. The design emphasizes speed, safety, and efficient space utilization, with structural reinforcement and precise assembly. A key safety feature is sacrificial keels, designed to detach upon impact without compromising hull integrity.1:59 Interior configurations include a three-cabin owner’s version with a dedicated suite and a four-cabin version, both sharing a common shower design between the two heads in the guest hull.2:46 A flybridge version, the Nautitech 46 Fly, is also available. The model debuted at the Genoa Boat Show as the second in the Nautitech Open series.1:12 The crew of *Parlay Revival* used a mold taken from a Nautitech 46 to fabricate custom non-skid deck panels for their Lagoon 450.18:37

The living fleet

Sailed by the fleet

Where the fleet has filmed this boat.

Seen 2 times across 2 channels of the fleet.

Basemap © Wikimedia Commons · CC BY-SA 4.0

On the water

The Nautitech 46 Open on video

The record

Full specifications

The complete reference set — tap any figure to switch between metric and imperial.

Dimensions
Weights
Rig & sail area
Rig
Fractional Sloop
Ratios
SA / displacement
23.8
Displacement / length
116.8
Hull
Hull type
Catamaran Twin Keel
Construction
FG w/poly foam sand.
Production
Years built
First built 2016
Designer
Marc Lombard, Roseo Design
Builder
Nautitech Catamarans

Boats like this, on the water

More boats like her, on the water

Comparable boats the fleet has on camera: same type, within a quarter of her length. Open the boat, or watch the video — a timestamp means she only appears in passing.

Seawind 137013.70 mSame hull familyNear-identical length
SAILING THE SEAWIND 1370 (owners review)from Gone with the Wynns
Antares Yachts 4413.41 mSame hull family0.4 m shorterA Ted Clements-designed catamaran with a shallow 1.22m draft, evolved from the PDQ 42 for offshore cruising
Too much work? DIY hurricane catamaran project 😬from Sail Life
Aventura 4513.50 mSame hull family0.3 m shorterA 2025-launched catamaran with a 24.34 sail area-to-displacement ratio, balancing modern performance with a 1.4-metre draft
Sailing Malta Gozo Pantelleria Tunisia to Spain.26:36from sailing vessel reality
Excess 1413.97 mSame hull family0.2 m longerA VPLP-designed catamaran with a high sail-area-to-displacement ratio, built for performance-oriented cruising
European Yacht of the Year testing in Spain0:51from SEILmagasinet
Lagoon 4714.10 mSame hull family0.3 m longer
Virgin Gorda and Scuba diving with Shark Planes11:22from Sam Holmes Sailing
Leopard 4714.27 mSame hull family0.5 m longerA 14-metre twin-keel catamaran with a high sail-area-to-displacement ratio of 26.95 for spirited performance
Roadtrip to La Parguera - Looking for boats to buy and bioluminescence2:17from Ann-Elin Synnes

The family

Related models

The designs closest to hers — usually the rest of the builder's range, sometimes the same hull sold under another name.

Nautitech 44 OpenA 13.3-metre twin-keel catamaran launched in 2022 that balances a high 21.8 sail area-to-displacement ratio with a 1.45-metreNautitech 48 OpenA 14.67-metre twin-keel catamaran built for 2023 that prioritizes a spacious open-concept layout for coastal cruisingNautitech 40 OpenA Marc Lombard-designed performance catamaran featuring an open-concept cockpit and a high sail area-to-displacement ratioNautitech 47A performance-oriented catamaran featuring a rotating fractional rig and a high sail-area-to-displacement ratioNautitech 541/542A Marc Lombard-designed performance catamaran featuring a high sail-area-to-displacement ratio and flexible cabin layouts

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