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Dynamique 52
Designer: Joubert/Nivelt  ·  Builder: Dynamique - Dufour Sparks (Fra)  ·  First built: 1986
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About the Dynamique 52

Designed by the renowned French naval architecture firm Joubert/Nivelt and built by Dynamique-Dufour Sparks in France starting in 1986, this 52-footer represents classic 1980s European sailing yacht design philosophy. The masthead sloop rig carries 794 square feet of sail area, delivering spirited performance with the fin keel and spade rudder configuration providing responsive handling characteristics. With a displacement of 27,814 pounds and a moderate comfort ratio of 28.43, the Dynamique 52 strikes a balance between performance and cruising comfort. The capsize screening formula of 1.92 indicates good stability for offshore passages, while the hull speed of 8.38 knots suggests respectable sailing performance in moderate conditions. The SA/Displacement ratio of 13.89 places this yacht in the moderate performance category—not a racing flyer, but certainly capable of spirited sailing. The fiberglass construction and proven Joubert/Nivelt design make this an attractive option for serious coastal cruising and offshore passages. French builders of this era were known for solid construction standards, and the Dynamique 52's dimensions—with her 14.50-foot beam and 7-foot draft—provide a good combination of interior volume and sailing ability for extended cruising adventures.

Core Dimensions
LOA (Length Overall) 52.00 ft / 15.85 m
LWL (Waterline Length) 39.08 ft / 11.91 m
Beam 14.50 ft / 4.42 m
Max Draft 7.00 ft / 2.13 m
Displacement 27,814.00 lb / 12,616 kg
Sail Area (Reported) 794.00 ft² / 73.77 m²
Design & Construction
Hull Type Fin w/spade rudder
Rigging Type Masthead Sloop
Construction FG
Designer Joubert/Nivelt
Builder Dynamique - Dufour Sparks (FRA)
First Built 1986
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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
 13.89
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
 208.04
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
 28.43
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
 1.92
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. 8.38 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
 2.23
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. 2,024.74 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. 13.89
Rig Dimensions
I (Foretriangle Height) 53.17 ft / 16.21 m
J (Foretriangle Base) 17.00 ft / 5.18 m
P (Mainsail Luff) 48.58 ft / 14.81 m
E (Mainsail Foot) 14.08 ft / 4.29 m
SA Fore 451.95 ft² / 41.99 m²
SA Main 342.00 ft² / 31.77 m²
SA Total (100%) 793.95 ft² / 73.76 m²
Est. Forestay Length 55.82 ft / 17.01 m
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