BoatsExcess 13

Excess 13

Catamaran, twin keels · Fractional Sloop · First built 2025

A high-performance 15-metre catamaran with a high sail-area-to-displacement ratio, designed for speed and modern comfort

Designed by Marc Lombard Design Group & Eric Levet.

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

See her sail

The Excess 13, on the water

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

Footage from SEILmagasinet

Is it for you?

Character

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

LightHeavy

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

Displacement / length 135
EasygoingPowered-up

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

Sail area / displacement 24.3

What the fleet has seen

The Excess 13, as the fleet has seen it

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

The Excess 13 is a 15.3-meter fractional sloop catamaran, designed by Marc Lombard Design Group, Eric Levet, and Marc Lombard, and built by Excess Catamarans since 2025. It features a twin keel hull, a 7.2-meter beam, a 1.5-meter draft, and a lightship displacement of 10,600 kg. Thomas Nilsson, reviewing the boat for SEILmagasinet, found it sailed at 8 knots hard on the wind and 10 knots in waves in 8–9 m/s gusts, noting its responsive helm felt closer to a monohull.0:15 The boom is set unusually low, improving stability by lowering forces.1:49 A rainwater collection system channels deck runoff into a dedicated tank for washing. The interior includes dual bathrooms sharing a central shower, a full-width forward berth, and carbon-fiber handrails, with a minimalist style contrasting with the Lagoon line.5:41 Nilsson observed some panel gaps and thin wood veneer edges, but concluded the Excess 13 balances speed, sailing performance, and cruising comfort.4:55 The PULSE LINE variant offers a taller mast and square-top main. Aboard Sailing Sunday, the crew evaluated the XS 13 at the Annapolis Boat Show, considering cockpit security, interior volume, and accessibility for an aging dog.14:54 Alfredo Contaldo noted its direct steering and self-tacking jib, emphasizing its weight reduction and performance focus.23:09

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 Excess 13 on video

Who's been looking

Market signal

Crews the fleet has filmed weighing this model up — no sale seen, and no asking price.

1channel looked into buying

From the fleet's own footage — our observed signal, not broker listings.

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
24.3
Displacement / length
134.8
Hull
Hull type
Catamaran Twin Keel
Construction
GRP / Vacuum infused polyester with balsa core
Production
Years built
First built 2025
Designer
Marc Lombard Design Group, Eric Levet
Builder
Excess 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.

ST Francis 5015.25 mSame hull familyNear-identical lengthA 15.25-metre catamaran with a 1.25m draft and a powerful 27.29 sail-area-to-displacement ratio for rapid cruising
Hh 4415.15 mSame hull family0.2 m shorterA high-performance carbon catamaran by James Hakes featuring twin daggerboards and a powerful 28.73 SA/displacement ratio
Ita 14.9914.99 mSame hull family0.3 m shorterA high-performance fractional catamaran with twin daggerboards and a powerful sail-area-to-displacement ratio of 29.8
Discovery Yachts 50 Catamaran15.40 mSame hull familyNear-identical lengthA Bill Dixon-designed fractional sloop catamaran, later rebranded as the Bluewater 50, built for blue-water cruising
Saba 5014.98 mSame hull family0.3 m shorterA 15-metre catamaran featuring a rotating fractional spar and a shallow 1.25-metre draft for versatile coastal access
Aura 5115.54 mSame hull family0.2 m longerA high-performance 15-metre catamaran from Berret-Racoupeau, featuring a fractional rig and shallow 1.3-metre draft

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.

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The fleet has more to say

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