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Chergui
Designer: Groupe Finot  ·  Builder: Gouteron (Fra)  ·  First built: 1973
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About the Chergui

Designed by the renowned Groupe Finot and built by French yard Gouteron between 1973 and 1978, this 28-foot sailboat represents classic 1970s French yacht design philosophy. The Chergui combines moderate proportions with thoughtful engineering, featuring a masthead sloop rig and fin keel with rudder on skeg configuration that delivers balanced sailing characteristics. With a displacement of 5,952 pounds and 2,094 pounds of ballast, the Chergui offers reassuring stability for coastal cruising and light offshore work. Her comfort ratio of 19.83 suggests quick motion in seaways, making her better suited for day sailing and coastal passages rather than extended offshore voyaging. The capsize screening formula of 2.07 indicates reasonable stability for her size class. The fiberglass construction and compact 28-foot length make the Chergui an appealing choice for sailors seeking a manageable yet capable yacht. Her 430 square feet of sail area provides adequate power for most conditions, while the hull speed of 6.23 knots offers respectable performance. Though production ended in 1978, these boats remain sought after by sailors who appreciate French design heritage and the craftsmanship of the Gouteron yard.

Core Dimensions
LOA (Length Overall) 28.21 ft / 8.60 m
LWL (Waterline Length) 21.65 ft / 6.60 m
Beam 9.35 ft / 2.85 m
Max Draft 5.15 ft / 1.57 m
Min Draft 4.59 ft / 1.40 m
Displacement 5,952.00 lb / 2,700 kg
Ballast 2,094.00 lb / 950 kg
Sail Area (Reported) 430.00 ft² / 39.95 m²
Design & Construction
Hull Type Fin with rudder on skeg
Rigging Type Masthead Sloop
Construction FG
Designer Groupe Finot
Builder Gouteron (FRA)
First Built 1973
Last Built 1978
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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
 21.01
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
 35.18
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
 261.84
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
 19.83
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
 2.07
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. 6.23 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. 723.30 pounds/inch
Engine & Accommodations
Engine Type Diesel
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