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Irwin 325
Designer: Ted Irwin  ·  Builder: Irwin Yacht & Marine Corp.  ·  First built: 1972
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About the Irwin 325

Built during Irwin Yachts' productive era of the 1980s, this 32-foot sailboat represents the company's approach to affordable cruising vessels designed for the growing recreational sailing market. Ted Irwin's philosophy centered on creating practical boats that could introduce families to sailing without requiring extensive experience or deep pockets. With its moderate proportions and traditional layout, the 325 appeals to coastal cruisers seeking a manageable vessel for weekend adventures and extended voyages along protected waters. The design emphasizes interior volume and comfort over racing performance, making it well-suited for couples or small families exploring harbors, bays, and coastal regions. Like many Irwin models from this period, the 325 likely features a spacious cockpit for entertaining and a thoughtfully arranged cabin that maximizes living space below decks. The boat's construction follows Irwin's reputation for solid fiberglass work, though buyers should inspect older examples for any signs of age-related issues common to boats from this era. For sailors prioritizing affordability and comfort over cutting-edge performance, the 325 offers an accessible entry point into cruising sailing, particularly appealing to those who value proven designs over contemporary innovations.

Core Dimensions
LOA (Length Overall) 32.50 ft / 9.91 m
LWL (Waterline Length) 26.00 ft / 7.92 m
Beam 10.00 ft / 3.05 m
Max Draft 3.92 ft / 1.19 m
Displacement 13,000.00 lb / 5,897 kg
Ballast 4,000.00 lb / 1,814 kg
Sail Area (Reported) 462.00 ft² / 42.92 m²
Design & Construction
Hull Type Fin with rudder on skeg
Rigging Type Masthead Sloop
Construction FG
Designer Ted Irwin
Builder Irwin Yacht & Marine Corp.
First Built 1972
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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
13.42
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
33.47
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
1.7
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. 6.83
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
1.27
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. 929.01
Rig Dimensions
I (Foretriangle Height) 39.0
J (Foretriangle Base) 13.0
P (Mainsail Luff) 32.0
E (Mainsail Foot) 13.0
SA Fore 253.5
SA Main 208.0
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