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Larsen 25
Designer: Hans Åge Larsen  ·  Builder: Nyboat (Den)  ·  First built: 1986
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About the Larsen 25

Built by Danish yard Nyboat from 1986 onwards, this fractional sloop represents Nordic design sensibilities with its fin keel and spade rudder configuration. Designer Hans Åge Larsen created a 26-foot sailboat that balances performance with practicality, evident in its moderate displacement of 3,527 pounds and substantial ballast ratio that promotes stability. The boat's sail area of 355 square feet combined with its SA/Displacement ratio of 24.58 suggests spirited performance in light to moderate conditions, making it well-suited for coastal cruising and club racing. With a hull speed of 6.54 knots and comfortable beam of just over eight feet, the design prioritizes sailing ability while maintaining reasonable interior space for weekend adventures. The low comfort ratio of 13.89 indicates this is primarily a performance-oriented design rather than a heavy cruiser, while the capsize screening value of 2.12 places it within acceptable limits for coastal sailing. Limited production of just 65 hulls makes the Larsen 25 a relatively rare find on the used boat market. The fiberglass construction and proven fractional rig configuration offer reliability for sailors seeking an efficient coastal performer with distinctive Scandinavian character.

Core Dimensions
LOA (Length Overall) 25.92 ft / 7.90 m
LWL (Waterline Length) 23.79 ft / 7.25 m
Beam 8.04 ft / 2.45 m
Max Draft 4.59 ft / 1.40 m
Displacement 3,527.00 lb / 1,600 kg
Ballast 1,675.00 lb / 760 kg
Ballast Type Lead
Sail Area (Reported) 355.00 ft² / 32.98 m²
Design & Construction
Hull Type Fin w/spade rudder
Rigging Type Fractional Sloop
Construction FG
Designer Hans Åge Larsen
Builder Nyboat (DEN)
First Built 1986
Number Built 65
Associations Larsen Club (DEN)
Owner Reviews

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Performance Ratios
SA/Displacement Sail Area to Displacement ratio measures how much sail power a boat has relative to its weight. Higher values mean more performance and speed.
Under 14 — Heavy cruiser, slow14–18 — Cruising sailboat18–22 — Cruiser/racerOver 22 — Performance racer
 24.58
Ballast/Displacement Ballast to Displacement ratio shows what percentage of the boat's total weight is ballast. Higher values generally mean better initial stability and stiffer sail carrying.
30–35% — Typical cruiser35–45% — Stiff performance boatOver 45% — Racing oriented
 47.49
Displacement/Length Displacement to Length ratio measures how heavy a boat is relative to its waterline length. Lower values mean a lighter, faster boat.
Under 100 — Ultralight racer100–200 — Light cruiser/racer200–300 — Moderate cruiser300–400 — Heavy cruiserOver 400 — Very heavy
 116.94
Comfort Ratio Ted Brewer's Comfort Ratio predicts how comfortable a boat will feel in offshore conditions. Higher values mean a steadier, more comfortable motion in a seaway.
Under 20 — Uncomfortably rough20–30 — Acceptable coastal30–40 — Good offshore comfortOver 40 — Very comfortable offshore
 13.89
Capsize Screening Formula The USHS Capsize Screening Formula estimates offshore capsize risk. Lower is safer — values under 2.0 are considered acceptable for offshore sailing.
Under 2.0 — Safe for offshore2.0–2.2 — Borderline offshoreOver 2.2 — Coastal use recommended
 2.12
Hull Speed Hull Speed is the theoretical maximum speed of a displacement hull, calculated from waterline length. Most cruising sailboats reach this speed in moderate conditions. 6.54 kn
Pounds/Inch Immersion Pounds per Inch Immersion (PPI) tells you how much weight is needed to sink the boat one inch. Useful for calculating how additional gear and stores affect waterline. 683.43 pounds/inch
Engine & Accommodations
Water Capacity 4 gals / 15 L
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