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Formosa 43
Designer: Ron Holland  ·  Builder: Formosa Boat Building Co. Ltd. (Taiwan)  ·  First built: 1980
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About the Formosa 43

Designed by renowned naval architect Ron Holland in 1980, this Taiwan-built cruiser represents the era when Formosa Boat Building Co. was establishing its reputation for solid construction and seaworthy designs. With only 20 hulls produced, the Formosa 43 remains a relatively rare find in today's used boat market. At 41.83 feet overall with a moderate 6.58-foot draft, this masthead sloop strikes an appealing balance between performance and practicality. The fin keel with rudder on skeg configuration provides good directional stability while maintaining reasonable maneuverability in tight quarters. Holland's design philosophy shines through in the boat's proportions, featuring a respectable sail area of 820 square feet driving a displacement of 24,800 pounds. The substantial ballast-to-displacement ratio and moderate beam of 12.58 feet suggest this yacht was conceived primarily for serious coastal and offshore cruising rather than racing. Her comfort ratio of 36.65 indicates a motion that favors seaworthiness over speed, making long passages more tolerable. The capsize screening formula of 1.73 falls well within accepted parameters for offshore work. Fiberglass construction from this period typically emphasized durability over weight savings, and Formosa's reputation for robust layup schedules makes these boats appealing to cruisers seeking a dependable platform for extended voyaging.

Core Dimensions
LOA (Length Overall) 41.83 ft / 12.75 m
LWL (Waterline Length) 33.33 ft / 10.16 m
Beam 12.58 ft / 3.83 m
Max Draft 6.58 ft / 2.01 m
Displacement 24,800.00 lb / 11,249 kg
Ballast 9,260.00 lb / 4,200 kg
Sail Area (Reported) 820.00 ft² / 76.18 m²
Design & Construction
Hull Type Fin with rudder on skeg
Rigging Type Masthead Sloop
Construction FG
Designer Ron Holland
Builder Formosa Boat Building Co. Ltd. (TAIWAN)
First Built 1980
Number Built 20
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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
15.49
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
37.34
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
299.02
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
36.65
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
1.73
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. 7.74 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. 1,498.17 pounds/inch
Engine & Accommodations
Engine Make Volvo Penta
Engine Model MD 21A
Engine Type Diesel
Horsepower 60
Fuel Capacity 60 gals / 227 L
Water Capacity 120 gals / 454 L
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