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Vision 660
Designer: Bruce Kirby  ·  Builder: Simpson Mfg. Co.  ·  First built: 1976
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About the Vision 660

Designed as a capable and comfortable cruising sailboat, the Vision 660 offers sailors a well-rounded platform suited to coastal and inshore passages. Built with liveaboard comfort and relaxed cruising in mind, this vessel appeals to those seeking a reliable bluewater companion rather than a performance-focused racer. While detailed specifications for the Vision 660 are limited in available records, the boat carries a reputation as a practical cruiser with sensible proportions and a layout geared toward accessibility for couples or small crews. Its design philosophy prioritizes ease of handling and seakeeping ability, making it an approachable choice for sailors transitioning from smaller vessels or those looking to simplify their time on the water without sacrificing offshore capability. The Vision 660 sits within a category of production cruisers that emphasize livability and straightforward sailing characteristics over outright speed. Prospective buyers would do well to inspect examples closely and consult owners' forums, as community knowledge often fills the gaps where formal documentation is sparse. For those drawn to unfussy, functional cruising, this boat merits serious consideration.

Core Dimensions
LOA (Length Overall) 21.67 ft / 6.61 m
LWL (Waterline Length) 18.50 ft / 5.64 m
Beam 8.00 ft / 2.44 m
Max Draft 4.50 ft / 1.37 m
Min Draft 2.00 ft / 0.61 m
Displacement 2,400.00 lb / 1,089 kg
Ballast 890.00 lb / 404 kg
Sail Area (Reported) 222.00 ft² / 20.62 m²
Design & Construction
Hull Type Keel/Cbrd.
Rigging Type Masthead Sloop
Construction FG
Designer Bruce Kirby
Builder Simpson Mfg. Co.
First Built 1976
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Known Issues & What to Watch For

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Performance Ratios
PHRF Rating PHRF (Performance Handicap Racing Fleet) is a national racing handicap measured in seconds per nautical mile. Lower values indicate faster boats. Ratings are sourced from US Sailing's national database (median across 60+ regional fleets).
Under 0 — Ultralight racer0–90 — Performance racer90–150 — Cruiser/racer150–210 — Typical cruiserOver 210 — Heavy/slow cruiser
 261
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
 19.86
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
 11.95
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
 2.39
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. 5.76
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
 3.38
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. 528.82
Rig Dimensions
I (Foretriangle Height) 27.0
J (Foretriangle Base) 9.3
P (Mainsail Luff) 22.8
E (Mainsail Foot) 7.8
SA Fore 125.55
SA Main 88.92
Find a Vision 660 For Sale
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