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Hylas 47
Designer: Sparkman & Stephens  ·  Builder: Queen Long Marine  ·  First built: 1986
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About the Hylas 47

Built during the 1980s by Hylas Yachts, this 47-footer represents the builder's commitment to creating serious blue-water cruising sailboats with performance-oriented characteristics. Hylas established a strong reputation for constructing well-built, seaworthy vessels that appealed to experienced sailors seeking capable offshore cruisers. The Hylas 47 embodies the design philosophy that defined the brand during its heyday – combining sturdy construction with sailing performance that doesn't sacrifice comfort entirely for speed. These boats were engineered for extended offshore passages, featuring robust hull construction and thoughtful deck layouts that prioritize safety and functionality in challenging conditions. While detailed specifications remain limited, the boat's reputation suggests it excels in coastal and offshore cruising applications where reliability and seaworthiness take precedence. The design likely incorporates moderate displacement characteristics typical of quality cruising boats from this era, providing a good balance between sailing performance and load-carrying capacity for extended voyaging. For sailors researching serious cruising sailboats with proven offshore capabilities, the Hylas 47 represents an interesting option from a builder known for quality construction and attention to the needs of experienced blue-water sailors.

Core Dimensions
LOA (Length Overall) 46.75 ft / 14.25 m
LWL (Waterline Length) 37.79 ft / 11.52 m
Beam 14.25 ft / 4.34 m
Max Draft 6.00 ft / 1.83 m
Displacement 35,000.00 lb / 15,876 kg
Ballast 14,600.00 lb / 6,622 kg
Sail Area (Reported) 1,050.00 ft² / 97.55 m²
Design & Construction
Hull Type Fin with rudder on skeg
Rigging Type Cutter
Construction FG
Designer Sparkman & Stephens
Builder Queen Long Marine
First Built 1986
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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
93
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
15.77
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
38.85
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
1.75
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. 8.24
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
1.73
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. 1.0
Rig Dimensions
I (Foretriangle Height) 60.0
J (Foretriangle Base) 19.0
P (Mainsail Luff) 53.5
E (Mainsail Foot) 18.0
SA Fore 570.0
SA Main 481.5
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