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Inferno 28
Designer: Håkan Södergren  ·  First built: 1986
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About the Inferno 28

With limited specifications available in current databases, the Inferno 28 represents one of those intriguing sailboat designs that requires deeper investigation for prospective buyers. This 28-foot vessel appears to be part of a smaller production run or possibly a regional design that hasn't achieved widespread documentation in mainstream boating resources. Based on the naming convention and size class, the Inferno 28 likely targets the performance-oriented sailing market, potentially offering spirited sailing characteristics that live up to its evocative name. Twenty-eight-foot sailboats in this category typically serve well as coastal cruisers and club racers, providing an ideal balance between manageable size and sailing capability. The scarcity of readily available specifications suggests this model may have had limited production numbers or represents a more specialized design approach. For potential buyers interested in the Inferno 28, conducting thorough research through sailing forums, contacting previous owners, or reaching out to marine surveyors familiar with the type would be essential steps. This detective work often reveals hidden gems in the sailing world—boats that offer excellent sailing qualities and value despite their lower profile in the mainstream market.

Core Dimensions
LOA (Length Overall) 27.72 ft / 8.45 m
LWL (Waterline Length) 22.47 ft / 6.85 m
Beam 9.55 ft / 2.91 m
Max Draft 4.92 ft / 1.50 m
Displacement 4,078.00 lb / 1,850 kg
Ballast 1,653.00 lb / 750 kg
Sail Area (Reported) 428.00 ft² / 39.76 m²
Design & Construction
Hull Type Fin w/spade rudder
Rigging Type Fractional Sloop
Construction FG
Designer Håkan Södergren
First Built 1986
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
26.9
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
12.97
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
2.39
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. 6.35
S# (Speed Number) The Speed Number (S#) is a quick performance index. Higher values indicate a faster, more powerful design relative to its size.
Under 3.0 — Slow cruiser3.0–5.0 — Average cruiser5.0–7.0 — Performance cruiserOver 7.0 — Racer
4.42
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. 766.75
Rig Dimensions
I (Foretriangle Height) 37.4
J (Foretriangle Base) 11.09
P (Mainsail Luff) 37.4
E (Mainsail Foot) 11.81
SA Fore 207.38
SA Main 220.85
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