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Walton 25 Whitby
Designer: T. Sunden  ·  Builder: Whitby Boat Works (Can)  ·  First built: 1961
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About the Walton 25 Whitby

Designed by T. Sunden and built by Canada's Whitby Boat Works starting in 1961, this classic 25-footer represents solid traditional sailboat construction from an era when seaworthiness took precedence over speed. The fiberglass hull features a full long keel with transom-hung rudder, creating exceptional directional stability and tracking ability that makes her particularly well-suited for coastal cruising and extended passages. With a displacement of 5,500 pounds on a 25-foot hull, this is clearly a heavy-displacement cruiser built for comfort and safety rather than racing performance. The substantial weight and deep 3.83-foot draft provide excellent stability and a smooth motion in choppy seas. Her masthead sloop rig offers straightforward sail handling, while the traditional long keel configuration delivers the kind of steady, predictable sailing characteristics that inspire confidence in varying conditions. The impressive comfort ratio of 28.29 indicates this boat will provide a comfortable ride offshore, while the low capsize screening value of 1.65 suggests good stability and resistance to knockdown. Though her hull speed of nearly 6 knots won't break any records, the Walton 25 Whitby appeals to sailors who prioritize seaworthiness, traditional aesthetics, and reliable performance over pure speed, making her an excellent choice for those seeking a genuine cruising boat in a manageable size.

Core Dimensions
LOA (Length Overall) 25.25 ft / 7.70 m
LWL (Waterline Length) 19.83 ft / 6.04 m
Beam 7.25 ft / 2.21 m
Max Draft 3.83 ft / 1.17 m
Displacement 5,500.00 lb / 2,495 kg
Design & Construction
Hull Type Long keel w/trans. hung rudder
Rigging Type Masthead Sloop
Construction FG
Designer T. Sunden
Builder Whitby Boat Works (CAN)
First Built 1961
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Performance Ratios
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
314.88
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
28.29
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
1.65
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. 5.97 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
1.51
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. 513.70 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. 15.28
Rig Dimensions
I (Foretriangle Height) 30.80 ft / 9.39 m
J (Foretriangle Base) 9.00 ft / 2.74 m
P (Mainsail Luff) 26.80 ft / 8.17 m
E (Mainsail Foot) 11.80 ft / 3.60 m
SA Fore 138.60 ft² / 12.88 m²
SA Main 158.12 ft² / 14.69 m²
SA Total (100%) 296.72 ft² / 27.57 m²
Est. Forestay Length 32.09 ft / 9.78 m
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