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Sailboat Specifications

Lagoon 43

Fractional Sloop · Catamaran Twin Keel

Designed by Van Peteghem/Lauriot Prévost · Built by Lagoon Catamaran · First built 2025

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LOA 45.44 ft  ·  Beam 2,522.97 ft  ·  Displacement 30,644.25 lb  ·  Sail Area 1,130.21 ft²  ·  Fractional Sloop  ·  Catamaran Twin Keel
About the Lagoon 43 Sailboat

French catamaran builder Lagoon developed the 43 as part of their popular cruising multihull lineup, targeting sailors seeking comfortable bluewater passage-making capabilities combined with spacious onboard living. This sailing catamaran represents Lagoon's commitment to creating vessels that prioritize interior volume and stability over outright performance. Built for extended cruising rather than racing, the Lagoon 43 excels in coastal and offshore passages where comfort takes precedence over speed. The twin-hull configuration provides exceptional stability in various sea conditions, reducing the heel that characterizes monohull sailing. This makes the boat particularly appealing to families or couples planning long-distance voyages. Lagoon's design philosophy emphasizes practical cruising features, and the 43 typically incorporates generous deck spaces, protected cockpit areas, and straightforward sail handling systems. The catamaran's wide beam creates impressive interior accommodations, often featuring multiple private cabins and bathrooms that rival much larger monohulls. While not built for competitive racing, the Lagoon 43 offers reliable passage-making abilities with good directional stability and manageable sail plans. The boat appeals to cruisers prioritizing comfort, space, and seaworthiness over pure sailing performance, making it well-suited for extended liveaboard cruising or charter operations.

Dimensions & Specifications
LOA (Length Overall) 45.44 ft / 13.85 m
Beam 2,522.97 ft / 769.00 m
Max Draft 4.30 ft / 1.31 m
Displacement 30,644.25 lb / 13,900 kg
Sail Area (Reported) 1,130.21 ft² / 105.00 m²
Design & Construction
Hull Type Catamaran Twin Keel
Rigging Type Fractional Sloop
Construction GRP
Designer Van Peteghem/Lauriot Prévost
Builder Lagoon Catamaran
First Built 2025
Related Sailboats Boreal 44 2 · J/45 · Dufour 44 · Swan 45 · Sabre 452
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Frequently Asked Questions

What is the Lagoon 43's sail area to displacement ratio?

The Lagoon 43 has a Sail Area to Displacement ratio (SA/D) of 18.54. Values between 14–18 are typical cruising sailboats; 18–22 is cruiser/racer; over 22 is performance racing.

How much does a Lagoon 43 weigh?

The Lagoon 43 has a displacement of 30,644.25 lb and a length overall (LOA) of 45.44 ft.

Who designed the Lagoon 43?

The Lagoon 43 was designed by Van Peteghem/Lauriot Prévost, first built in 2025.