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Sailboat Specifications

Kirby 23

Fractional Sloop · Fin W/Spade Rudder

Designed by Bruce Kirby · Built by Ross Marine · First built 1985

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LOA 23.00 ft  ·  Beam 7.75 ft  ·  Displacement 2,400.00 lb  ·  Sail Area 271.00 ft²  ·  Fractional Sloop  ·  Fin W/Spade Rudder
About the Kirby 23 Sailboat

With limited documentation available, the Kirby 23 represents one of the more elusive designs in the 23-foot sailboat category. This modest-sized vessel appears to have been produced in relatively small numbers, making it something of a rare find in today's used boat market. Based on its length and the typical design philosophy of boats from this era, the Kirby 23 would likely appeal to sailors seeking a manageable daysailer or light coastal cruiser. The 23-foot length suggests a boat that offers reasonable interior space for weekend getaways while remaining small enough for single-handed sailing or easy handling by a small crew. Without extensive production records or widespread ownership, the Kirby 23 hasn't developed the strong reputation networks seen with more popular designs. This obscurity can work both ways for potential buyers – while there's less collective wisdom about common issues or modifications, it also means finding parts or knowledgeable service providers could prove challenging. For sailors drawn to unique or uncommon designs, the Kirby 23 offers the appeal of sailing something distinctive. However, prospective buyers should carefully evaluate any example they encounter, paying particular attention to the condition of systems and the availability of replacement parts for future maintenance needs.

Dimensions & Specifications
LOA (Length Overall) 23.00 ft / 7.01 m
LWL (Waterline Length) 18.80 ft / 5.73 m
Beam 7.75 ft / 2.36 m
Max Draft 3.92 ft / 1.19 m
Displacement 2,400.00 lb / 1,089 kg
Ballast 900.00 lb / 408 kg
Sail Area (Reported) 271.00 ft² / 25.18 m²
Design & Construction
Hull Type Fin w/spade rudder
Rigging Type Fractional Sloop
Construction FG
Designer Bruce Kirby
Builder Ross Marine
First Built 1985
Related Sailboats Sonar · Sonic 23 · Pearson 23 · San Juan 23 · Merit 23
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Frequently Asked Questions

What is the Kirby 23's sail area to displacement ratio?

The Kirby 23 has a Sail Area to Displacement ratio (SA/D) of 24.25. Values between 14–18 are typical cruising sailboats; 18–22 is cruiser/racer; over 22 is performance racing.

What is the Kirby 23's comfort ratio?

The Kirby 23 has a Ted Brewer Comfort Ratio of 12.08. A ratio over 30 indicates good offshore comfort; over 40 is very comfortable offshore.

Is the Kirby 23 safe for offshore sailing?

The Kirby 23 has a Capsize Screening Formula value of 2.32. Values under 2.0 are considered acceptable for offshore sailing; under 1.8 is ideal.

What is the hull speed of the Kirby 23?

The theoretical hull speed of the Kirby 23 is 5.81 knots, calculated from its waterline length.

How much does a Kirby 23 weigh?

The Kirby 23 has a displacement of 2,400.00 lb and a length overall (LOA) of 23.00 ft.

Who designed the Kirby 23?

The Kirby 23 was designed by Bruce Kirby, first built in 1985.