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Peterson 25 14 Ton
Designer: Doug Peterson  ·  Builder: Eichenlaub Boat Co. (Usa)  ·  First built: 1973
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About the Peterson 25 14 Ton

Designed by Doug Peterson in the early 1970s, this 25-footer represents a fascinating piece of sailing history from one of yacht design's most influential figures. Only four examples were ever built by Eichenlaub Boat Company, making this strip-planked mahogany and fiberglass composite construction a true rarity among Peterson's extensive catalog. The boat's fin keel and spade rudder configuration reflects Peterson's racing-oriented design philosophy, while the masthead sloop rig and moderate sail area suggest versatility for both performance sailing and coastal cruising. With a displacement of 4,700 pounds and 1,900 pounds of ballast, she strikes a balance between stability and responsiveness that was characteristic of Peterson's approach during this era. The low comfort ratio of 20.99 and favorable capsize screening value of 1.91 indicate this is primarily a coastal sailor rather than an offshore passage-maker. Her SA/Displacement ratio of 14.98 suggests decent performance in light to moderate conditions, while the strip-planked mahogany construction offers both strength and classic aesthetics that were hallmarks of quality boatbuilding in the 1970s. For collectors or sailors seeking a unique piece of Peterson design history, this rare 25-footer offers an intriguing blend of racing DNA and practical sailing capability.

Core Dimensions
LOA (Length Overall) 25.00 ft / 7.62 m
LWL (Waterline Length) 20.25 ft / 6.17 m
Beam 8.00 ft / 2.44 m
Max Draft 4.50 ft / 1.37 m
Displacement 4,700.00 lb / 2,132 kg
Ballast 1,900.00 lb / 862 kg
Ballast Type Lead
Sail Area (Reported) 262.00 ft² / 24.34 m²
Design & Construction
Hull Type Fin w/spade rudder
Rigging Type Masthead Sloop
Construction strip planked mahog.w/glass
Designer Doug Peterson
Builder Eichenlaub Boat Co. (USA)
First Built 1973
Number Built 4
Associations Quarter Ton Class
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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
 14.98
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
 40.43
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
 252.68
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
 20.99
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
 1.91
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. 6.03 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
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. 578.84 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. 15.41
Rig Dimensions
I (Foretriangle Height) 31.70 ft / 9.66 m
J (Foretriangle Base) 10.30 ft / 3.14 m
P (Mainsail Luff) 28.30 ft / 8.63 m
E (Mainsail Foot) 7.50 ft / 2.29 m
SA Fore 163.26 ft² / 15.17 m²
SA Main 106.13 ft² / 9.86 m²
SA Total (100%) 269.39 ft² / 25.03 m²
Est. Forestay Length 33.33 ft / 10.16 m
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