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Slipper Ray Greene
Designer: Ray Greene  ·  Builder: Ray Greene & Co.  ·  First built: 1938
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About the Slipper Ray Greene

Designed by Ray Greene, the Slipper is a classic American sailboat that reflects the craftsmanship and design sensibilities of its era. While detailed specifications remain limited, the Slipper's name and lineage suggest a nimble, responsive vessel well suited to daysailing and relaxed coastal cruising. Ray Greene was known for producing accessible, well-built boats that appealed to sailors seeking reliable performance without unnecessary complexity, and the Slipper fits comfortably within that tradition. For prospective buyers, the Slipper represents an opportunity to own a piece of American sailing heritage. Its design characteristics likely favor ease of handling, making it an appealing choice for solo sailors or small crews exploring inshore waters and protected bays. Boats from this lineage tend to reward attentive seamanship with a satisfying, connected feel on the water. Those researching the Slipper should seek out owner communities and class associations, where firsthand accounts can fill in the gaps that formal documentation may leave behind. With careful inspection and the right owner, this boat could prove to be a charming and capable companion for weekend adventures on the water.

Core Dimensions
LOA (Length Overall) 12.00 ft / 3.66 m
Beam 5.16 ft / 1.57 m
Max Draft 2.67 ft / 0.81 m
Min Draft 0.50 ft / 0.15 m
Displacement 250.00 lb / 113 kg
Sail Area (Reported) 110.00 ft² / 10.22 m²
Design & Construction
Hull Type Centerboard Dinghy
Rigging Type Fractional Sloop
Construction FG or Plywood
Designer Ray Greene
Builder Ray Greene & Co.
First Built 1938
Owner Reviews

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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
44.39
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
3.28
How It Compares

vs. Beetle Cat, Butterfly, Firefly

This boat Similar boats
Dimensions
LOA
Slipper Ray Greene ★
12.0 ft
Beetle Cat
12.3 ft
Butterfly
12.0 ft
Firefly
12.0 ft
LWL
Slipper Ray Greene ★
Beetle Cat
11.7 ft
Butterfly
Firefly
11.8 ft
Beam
Slipper Ray Greene ★
5.2 ft
Beetle Cat
6.1 ft
Butterfly
4.5 ft
Firefly
4.7 ft
Displacement
Slipper Ray Greene ★
250 lbs
Beetle Cat
450 lbs
Butterfly
137 lbs
Firefly
260 lbs
Sail Area
Slipper Ray Greene ★
110 sq ft
Beetle Cat
Butterfly
75 sq ft
Firefly
Performance
Displacement / Length (lower = lighter)
Slipper Ray Greene ★
Beetle Cat
126
Butterfly
57
Firefly
71
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