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Neptune Cruiser
Designer: Lage Eklund  ·  Builder: Various (Wood); Nicanders Batvarv (Swe); Segmo Plast (Swe) (Fg)  ·  First built: 1938
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About the Neptune Cruiser

Designed by renowned Swedish naval architect Lage Eklund in 1938, this classic cruiser represents traditional Scandinavian boatbuilding at its finest. With 270 hulls produced over its production run, the Neptune Cruiser earned a solid reputation among sailors seeking a seaworthy vessel for coastal and offshore cruising. The long keel configuration and substantial ballast-to-displacement ratio create exceptional stability and tracking ability, making this boat particularly well-suited for extended coastal passages and moderate offshore work. Her fractional sloop rig provides balanced sail handling characteristics, while the traditional hull form delivers predictable performance in various sea conditions. Originally constructed in wood by various builders, later production moved to fiberglass under Swedish yards Nicanders Batvarv and Segmo Plast. This transition helped preserve Eklund's classic design while offering modern construction benefits. The hull's moderate beam and draft make her suitable for exploring shallow harbors and anchorages. With a comfort ratio indicating excellent seaworthiness and motion characteristics, the Neptune Cruiser appeals to sailors prioritizing safety and comfort over pure speed. Her capsize screening value suggests good stability margins, while the hull generates respectable performance for a traditional cruising design. This boat rewards patient sailors who appreciate classic styling combined with proven seakeeping abilities.

Core Dimensions
LOA (Length Overall) 29.53 ft / 9.00 m
LWL (Waterline Length) 19.19 ft / 5.85 m
Beam 6.30 ft / 1.92 m
Max Draft 3.94 ft / 1.20 m
Displacement 2,535.32 lb / 1,150 kg
Ballast 1,190.50 lb / 540 kg
Ballast Type Iron
Design & Construction
Hull Type Long Keel
Rigging Type Fractional Sloop
Construction Wood/FG
Designer Lage Eklund
Builder Various (wood); Nicanders Batvarv (SWE); Segmo Plast (SWE) (FG)
First Built 1938
Number Built 270
Associations Neptune Cruiser Association
Owner Reviews

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Performance Ratios
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
 46.96
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
 160.16
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
 15.13
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
 1.85
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. 5.87 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. 431.98 pounds/inch
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