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Fifty 23
Designer: Joubert  ·  Builder: Kirié  ·  First built: 1974
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About the Fifty 23

With extremely limited specifications available, research into the Fifty 23 reveals a sailboat that appears to exist on the periphery of documented sailing craft. This relative obscurity suggests either a very limited production run, a regional builder with minimal marketing reach, or possibly a custom design that never achieved widespread recognition in sailing circles. Given the "23" designation typically indicating length in feet, this would position the boat in the compact cruiser or day sailor category. Boats of this size range generally serve coastal cruising and recreational sailing needs, offering manageable handling characteristics for smaller crews while providing adequate space for weekend adventures or day sailing excursions. The scarcity of available information makes the Fifty 23 something of an enigma in the sailing world. Potential buyers investigating this model would likely need to rely heavily on individual boat surveys and hands-on inspections rather than established reputation or extensive owner networks. This lack of documentation could present both challenges and opportunities—while comprehensive research proves difficult, it might also indicate a hidden gem or unique design that simply never gained mainstream attention in competitive sailing markets.

Core Dimensions
LOA (Length Overall) 22.97 ft / 7.00 m
LWL (Waterline Length) 20.18 ft / 6.15 m
Beam 8.17 ft / 2.49 m
Max Draft 3.28 ft / 1.00 m
Displacement 5,291.00 lb / 2,400 kg
Ballast 1,543.00 lb / 700 kg
Sail Area (Reported) 322.00 ft² / 29.91 m²
Design & Construction
Hull Type Fin with rudder on skeg
Rigging Type Masthead Sloop
Construction FG
Designer Joubert
Builder Kirié
First Built 1974
Last Built 1979
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
17.02
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
23.7
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
1.88
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. 6.02
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. 589.1
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