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Thousand Islands Yc One Design
Designer: William Gardner  ·  Builder: Leyere Boatworks  ·  First built: 1912
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About the Thousand Islands Yc One Design

Originating from the storied sailing culture of the Thousand Islands region along the St. Lawrence River, the Thousand Islands YC One Design carries with it the heritage of a tight-knit racing community with a passion for competitive one-design sailing. As its name suggests, this boat was purpose-built for one-design racing, where identical hulls ensure that skill and tactics determine the winner rather than equipment advantages. While detailed specifications are limited, one-design classes like this are typically optimized for spirited inshore and club racing, rewarding athleticism, precise boat handling, and tactical awareness. These boats are often deeply tied to their home yacht club's racing program, making them a beloved fixture within their regional fleets and a natural choice for sailors embedded in that local sailing scene. For a prospective buyer, the Thousand Islands YC One Design represents an opportunity to tap into an established racing class with a genuine sense of community. Finding an active fleet is key to getting the most out of ownership, and connecting with the Thousand Islands Yacht Club directly is the best way to understand current class activity and availability.

Core Dimensions
LOA (Length Overall) 26.25 ft / 8.00 m
LWL (Waterline Length) 16.75 ft / 5.11 m
Beam 6.50 ft / 1.98 m
Max Draft 2.50 ft / 0.76 m
Displacement 1,400.00 lb / 635 kg
Sail Area (Reported) 240.00 ft² / 22.30 m²
Design & Construction
Hull Type Keel/Cbrd.
Rigging Type Gaffhead Sloop
Construction Wood
Designer William Gardner
Builder Leyere Boatworks
First Built 1912
Last Built 1912
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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
30.75
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
9.12
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
2.33
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. 5.48
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. 389.02
How It Compares

vs. Cornish Crabber 26, Knickerbocker One Design, Pearson 26 One Design

This boat Similar boats
Dimensions
LOA
Thousand Islands Yc One Design ★
26.3 ft
Cornish Crabber 26
26.2 ft
Knickerbocker One Design
26.3 ft
Pearson 26 One Design
26.2 ft
LWL
Thousand Islands Yc One Design ★
16.8 ft
Cornish Crabber 26
23.8 ft
Knickerbocker One Design
19.0 ft
Pearson 26 One Design
21.7 ft
Beam
Thousand Islands Yc One Design ★
6.5 ft
Cornish Crabber 26
9.1 ft
Knickerbocker One Design
6.6 ft
Pearson 26 One Design
8.7 ft
Displacement
Thousand Islands Yc One Design ★
1 lbs
Cornish Crabber 26
8 lbs
Knickerbocker One Design
4 lbs
Pearson 26 One Design
5 lbs
Ballast
Thousand Islands Yc One Design ★
Cornish Crabber 26
3 lbs
Knickerbocker One Design
2 lbs
Pearson 26 One Design
2 lbs
Sail Area
Thousand Islands Yc One Design ★
240 sq ft
Cornish Crabber 26
473 sq ft
Knickerbocker One Design
337 sq ft
Pearson 26 One Design
321 sq ft
Performance
SA / Displacement (higher = more powerful)
Thousand Islands Yc One Design ★
30.8
Cornish Crabber 26
17.8
Knickerbocker One Design
21.4
Pearson 26 One Design
17.2
Ballast / Disp (higher = stiffer)
Thousand Islands Yc One Design ★
Cornish Crabber 26
43.1 %
Knickerbocker One Design
Pearson 26 One Design
42.3 %
Comfort Ratio (higher = more comfortable offshore)
Thousand Islands Yc One Design ★
9.1
Cornish Crabber 26
29.6
Knickerbocker One Design
23.9
Pearson 26 One Design
19.7
Capsize Screening (lower = safer)
Thousand Islands Yc One Design ★
2.33
Cornish Crabber 26
1.76
Knickerbocker One Design
1.66
Pearson 26 One Design
2.00
Displacement / Length (lower = lighter)
Thousand Islands Yc One Design ★
Cornish Crabber 26
293
Knickerbocker One Design
Pearson 26 One Design
228
Hull Speed
Thousand Islands Yc One Design ★
5.5 kts
Cornish Crabber 26
6.5 kts
Knickerbocker One Design
5.8 kts
Pearson 26 One Design
6.2 kts
Speed Number (higher = faster)
Thousand Islands Yc One Design ★
Cornish Crabber 26
Knickerbocker One Design
2.4
Pearson 26 One Design
2.4
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