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Searider 25
Designer: L. H. James  ·  Builder: Searider Yachts (Uk)  ·  First built: 1963
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About the Searider 25

Designed by L. H. James and built by Searider Yachts in the UK starting in 1963, this 25-footer represents classic British yacht design from the early 1960s. With its traditional fin keel and rudder-on-skeg configuration, the Searider 25 offers predictable handling characteristics that made it popular among coastal cruising sailors of its era. The boat's moderate displacement of 5,000 pounds and comfortable beam of 7.75 feet provide reasonable interior volume for weekend cruising, while the 4-foot draft allows access to most harbors and anchorages. Her masthead sloop rig carries 280 square feet of sail area, delivering respectable performance for coastal sailing without being overpowered in typical conditions. With a comfort ratio of 23.11, this design falls into the moderate range, making it suitable for coastal cruising rather than extended offshore passages. The capsize screening formula of 1.82 indicates good stability for protected waters and moderate sea conditions. Her hull speed of just over 6 knots reflects the conservative design philosophy of the period, prioritizing seaworthiness over racing performance. The fiberglass construction has proven durable over the decades, and surviving examples continue to provide reliable service for sailors seeking a traditional cruising experience with classic British sailing characteristics.

Core Dimensions
LOA (Length Overall) 25.00 ft / 7.62 m
LWL (Waterline Length) 20.50 ft / 6.25 m
Beam 7.75 ft / 2.36 m
Max Draft 4.00 ft / 1.22 m
Displacement 5,000.00 lb / 2,268 kg
Sail Area (Reported) 280.00 ft² / 26.01 m²
Design & Construction
Hull Type Fin with rudder on skeg
Rigging Type Masthead Sloop
Construction FG
Designer L. H. James
Builder Searider Yachts (UK)
First Built 1963
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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
 15.37
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
 259.1
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
 23.11
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
 1.82
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. 6.07 kn
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. 567.68 pounds/inch
Engine & Accommodations
Engine Make Perkins
Engine Type Diesel
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