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S2 110 A
Designer: Arthur Edmunds  ·  Builder: S2 Yachts  ·  First built: 1977
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About the S2 110 A

Designed by Arthur Edmunds and built by S2 Yachts from 1977 to 1987, this 36-foot masthead sloop represents a well-balanced approach to coastal cruising and club racing. With 156 hulls produced over its decade-long production run, the design found favor among sailors seeking a capable yet manageable cruiser-racer. The fin keel and spade rudder configuration, combined with a moderate displacement of 15,000 pounds and 40% ballast ratio, delivers responsive handling while maintaining the stability needed for comfortable cruising. The fiberglass construction with balsa-cored decking provides strength and insulation, typical of quality production boats from this era. With a sail area to displacement ratio of 16.5, the boat offers spirited performance in moderate conditions while remaining well-mannered in heavier weather. The comfort ratio of 27.95 indicates motion characteristics favoring day sailing and shorter coastal passages rather than extended offshore voyaging. A capsize screening value of 1.94 suggests reasonable stability for coastal waters. The design strikes an appealing balance for sailors wanting weekend cruising capability with occasional racing potential. Its size and systems make it an excellent choice for couples or small families looking to explore coastal waters with confidence and comfort.

Core Dimensions
LOA (Length Overall) 36.00 ft / 10.97 m
LWL (Waterline Length) 28.25 ft / 8.61 m
Beam 11.92 ft / 3.63 m
Max Draft 5.50 ft / 1.68 m
Displacement 15,000.00 lb / 6,804 kg
Ballast 6,000.00 lb / 2,722 kg
Ballast Type Lead
Sail Area (Reported) 625.00 ft² / 58.06 m²
Headroom 6.25 ft / 1.91 m
Design & Construction
Hull Type Fin w/spade rudder
Rigging Type Masthead Sloop
Construction FG/balsa cored deck
Designer Arthur Edmunds
Builder S2 Yachts
First Built 1977
Last Built 1987
Number Built 156
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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
 16.5
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
 40
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
 297.02
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
 27.95
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
 1.94
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. 7.12 kn
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
 1.73
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. 1,203.21 pounds/inch
SA/Displacement (Calc) Calculated Sail Area to Displacement ratio using actual measured sail dimensions rather than reported values. More precise than the reported SA/Disp figure. 16.5
Rig Dimensions
I (Foretriangle Height) 46.00 ft / 14.02 m
J (Foretriangle Base) 15.00 ft / 4.57 m
P (Mainsail Luff) 40.00 ft / 12.19 m
E (Mainsail Foot) 14.00 ft / 4.27 m
SA Fore 345.00 ft² / 32.05 m²
SA Main 280.00 ft² / 26.01 m²
SA Total (100%) 625.00 ft² / 58.06 m²
Est. Forestay Length 48.38 ft / 14.75 m
Mast Height (DWL) 49.00 ft / 14.94 m
Engine & Accommodations
Engine Make Volvo
Engine Type Diesel
Horsepower 35
Fuel Capacity 50 gals / 189 L
Water Capacity 87 gals / 329 L
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