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Sailboat Specifications

Laurin 31

Fractional Sloop · Long Keel

Designed by Arvid Laurin · Built by Miguel Solér (Swe) · First built 1968

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LOA 31.66 ft  ·  Beam 9.45 ft  ·  Displacement 12,125.00 lb  ·  Sail Area 538.00 ft²  ·  Fractional Sloop  ·  Long Keel
About the Laurin 31 Sailboat

Swedish designer Arvid Laurin created this solid cruising sailboat that exemplifies Scandinavian boatbuilding philosophy from the late 1960s through early 2000s. Built by Miguel Solér in Sweden over a 35-year production run, only 40 hulls were completed, making this a relatively rare find on the used boat market. The Laurin 31's traditional long keel configuration and substantial displacement of over 12,000 pounds with 4,850 pounds of ballast create exceptional directional stability and seaworthiness. Her comfort ratio of 32.17 indicates a motion that favors extended offshore passages over quick coastal hops, while the conservative capsize screening value of 1.65 demonstrates inherent safety margins that blue-water cruisers appreciate. The fractional sloop rig provides versatile sail handling options, particularly valuable when cruising shorthanded. With moderate sail area and a hull speed around seven knots, this design prioritizes seakindliness and crew comfort over raw performance. The fiberglass construction ensures durability with manageable maintenance requirements. This boat suits sailors seeking a capable offshore cruiser that can handle extended passages in varying conditions. Her Scandinavian pedigree shows in the robust construction and practical design details that prioritize safety and reliability over flashy performance numbers.

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Dimensions & Specifications
LOA (Length Overall) 31.66 ft / 9.65 m
LWL (Waterline Length) 28.21 ft / 8.60 m
Beam 9.45 ft / 2.88 m
Max Draft 5.31 ft / 1.62 m
Displacement 12,125.00 lb / 5,500 kg
Ballast 4,850.00 lb / 2,200 kg
Ballast Type Iron
Sail Area (Reported) 538.00 ft² / 49.98 m²
Design & Construction
Hull Type Long Keel
Rigging Type Fractional Sloop
Construction FG
Designer Arvid Laurin
Builder Miguel Solér (SWE)
First Built 1968
Last Built 2003
Number Built 40
Associations Laurin Koster
Related Sailboats Najad 320 · Alpha · Evasion 32 Beneteau · Pearson 32 · Fuji 32
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Frequently Asked Questions

What is the Laurin 31's sail area to displacement ratio?

The Laurin 31 has a Sail Area to Displacement ratio (SA/D) of 16.37. Values between 14–18 are typical cruising sailboats; 18–22 is cruiser/racer; over 22 is performance racing.

What is the Laurin 31's comfort ratio?

The Laurin 31 has a Ted Brewer Comfort Ratio of 32.17. A ratio over 30 indicates good offshore comfort; over 40 is very comfortable offshore.

Is the Laurin 31 safe for offshore sailing?

The Laurin 31 has a Capsize Screening Formula value of 1.65. Values under 2.0 are considered acceptable for offshore sailing; under 1.8 is ideal.

What is the hull speed of the Laurin 31?

The theoretical hull speed of the Laurin 31 is 7.12 kn knots, calculated from its waterline length.

How much does a Laurin 31 weigh?

The Laurin 31 has a displacement of 12,125.00 lb and a length overall (LOA) of 31.66 ft.

Who designed the Laurin 31?

The Laurin 31 was designed by Arvid Laurin, first built in 1968.