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Sailboat Specifications

Irwin 28

Masthead Sloop · Fin With Rudder On Skeg

Designed by Ted Irwin · Built by Irwin Yachts · First built 1970

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LOA 28.00 ft  ·  Beam 8.00 ft  ·  Displacement 7,900.00 lb  ·  Sail Area 397.00 ft²  ·  Masthead Sloop  ·  Fin With Rudder On Skeg
About the Irwin 28 Sailboat

Built during Irwin Yachts' productive era in the 1970s and 1980s, this 28-foot sailboat represents the builder's commitment to creating affordable yet seaworthy cruising vessels for the growing recreational sailing market. Irwin established a solid reputation for building practical boats that offered good value for coastal cruising and weekend sailing adventures. The design reflects typical characteristics of its era, featuring a moderate beam and comfortable accommodations that make extended time aboard enjoyable for couples or small families. Like other Irwin models, the 28 was engineered with ease of handling in mind, making it accessible to sailors transitioning from smaller boats or those seeking a manageable size for shorthanded sailing. While detailed specifications remain limited, the boat's size and Irwin's design philosophy suggest it's well-suited for coastal cruising, protected water sailing, and serving as a capable weekend getaway vessel. The builder's focus on practical layouts and solid construction techniques earned their boats a following among sailors seeking reliable performance without excessive complexity. For those researching vintage cruising sailboats, the Irwin 28 represents an interesting option from a builder known for delivering functional sailing vessels during the recreational boating boom of the late twentieth century.

Market Price Estimate Beta
Small sample size. This estimate is based on fewer than 5 listings and may not be representative of the true market. Use with caution.
$2,200 – $2,200
typical asking price
Median $2,200  ·  1 listing used
All listings
$2,200 – $2,200 1
About this estimate ▾
Dimensions & Specifications
LOA (Length Overall) 28.00 ft / 8.53 m
LWL (Waterline Length) 22.50 ft / 6.86 m
Beam 8.00 ft / 2.44 m
Max Draft 4.50 ft / 1.37 m
Displacement 7,900.00 lb / 3,583 kg
Ballast 3,000.00 lb / 1,361 kg
Sail Area (Reported) 397.00 ft² / 36.88 m²
Design & Construction
Hull Type Fin with rudder on skeg
Rigging Type Masthead Sloop
Construction FG
Designer Ted Irwin
Builder Irwin Yachts
First Built 1970
Related Sailboats Aloha 28 · S2 85 · Grampian 28 · Ranger 28 · Cal 28
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Engine & Accommodations
Fuel Capacity 24
Water Capacity 25
Frequently Asked Questions

What is the Irwin 28's sail area to displacement ratio?

The Irwin 28 has a Sail Area to Displacement ratio (SA/D) of 16.07. Values between 14–18 are typical cruising sailboats; 18–22 is cruiser/racer; over 22 is performance racing.

What is the Irwin 28's comfort ratio?

The Irwin 28 has a Ted Brewer Comfort Ratio of 31.67. A ratio over 30 indicates good offshore comfort; over 40 is very comfortable offshore.

Is the Irwin 28 safe for offshore sailing?

The Irwin 28 has a Capsize Screening Formula value of 1.61. Values under 2.0 are considered acceptable for offshore sailing; under 1.8 is ideal.

What is the hull speed of the Irwin 28?

The theoretical hull speed of the Irwin 28 is 6.36 knots, calculated from its waterline length.

How much does a Irwin 28 weigh?

The Irwin 28 has a displacement of 7,900.00 lb and a length overall (LOA) of 28.00 ft.

How much does a used Irwin 28 cost?

Based on 1 recent market listings, used Irwin 28 sailboats typically sell for between $2,200 and $2,200, with a median asking price of $2,200. Price varies significantly based on year, condition, location, and included equipment.

Who designed the Irwin 28?

The Irwin 28 was designed by Ted Irwin, first built in 1970.