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Ericson 25 1
Designer: Bruce King  ·  Builder: Ericson Yachts (Usa)  ·  First built: 1978
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About the Ericson 25 1

Designed by renowned naval architect Bruce King, this compact cruiser represents Ericson Yachts' successful entry into the smaller boat market during the late 1970s performance sailing boom. With 660 hulls produced between 1978 and 1984, the Ericson 25-1 established itself as a popular choice for sailors seeking a well-built pocket cruiser with spirited sailing characteristics. The boat's fin keel and spade rudder configuration, combined with a fractional sloop rig carrying 325 square feet of sail area, delivers responsive handling and respectable performance for coastal sailing and weekend cruising. At 5,000 pounds displacement with 2,000 pounds of ballast, she offers a good balance of stability and motion comfort. The moderate comfort ratio of 17.42 suggests reasonable accommodations for her size, while the capsize screening value of 2.17 indicates she's best suited for protected waters and coastal sailing rather than extended offshore passages. King's design emphasizes sailing performance without sacrificing basic cruising amenities, making this an attractive option for sailors wanting to step up from smaller dayboats or those seeking an easily handled coastal cruiser. Her fiberglass construction and production volume mean parts and service knowledge remain reasonably available in the used boat market.

Core Dimensions
LOA (Length Overall) 25.42 ft / 7.75 m
LWL (Waterline Length) 21.83 ft / 6.65 m
Beam 9.25 ft / 2.82 m
Max Draft 4.92 ft / 1.50 m
Displacement 5,000.00 lb / 2,268 kg
Ballast 2,000.00 lb / 907 kg
Ballast Type Lead
Sail Area (Reported) 325.00 ft² / 30.19 m²
Headroom 6.08 ft / 1.85 m
Design & Construction
Hull Type Fin w/spade rudder
Rigging Type Fractional Sloop
Construction FG
Designer Bruce King
Builder Ericson Yachts (USA)
First Built 1978
Last Built 1984
Number Built 660
Associations Ericson Yachts Information
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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
 234
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
 17.84
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
 40
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
 214.57
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
 17.42
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
 2.17
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. 6.26 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
 2.63
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. 721.51 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. 17.86
Rig Dimensions
I (Foretriangle Height) 30.50 ft / 9.30 m
J (Foretriangle Base) 10.50 ft / 3.20 m
P (Mainsail Luff) 31.50 ft / 9.60 m
E (Mainsail Foot) 10.50 ft / 3.20 m
SA Fore 160.13 ft² / 14.88 m²
SA Main 165.38 ft² / 15.36 m²
SA Total (100%) 325.51 ft² / 30.24 m²
Est. Forestay Length 32.26 ft / 9.83 m
Mast Height (DWL) 40.00 ft / 12.19 m
Engine & Accommodations
Fuel Capacity 20 gals / 76 L
Water Capacity 19 gals / 72 L
Resources & Community
⚓ Class Association Ericson Yachts Information Exchange 💬 Owners Forum Owners Forum & Discussion 👥 Facebook Group Facebook Owners Group
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