Swan 57
Oy Nautor AB · designed by Olin Stephens · 1977
fin keelBermuda rigFinland
The Swan 57 is a 46-foot bermuda rig sailboat designed by Olin Stephens and built by Oy Nautor AB, first launched in 1977.
General
| Builder | Oy Nautor AB |
|---|---|
| Designer | Olin Stephens |
| Years built | 1977 |
| Hull type | fin keel |
| Rig type | Bermuda rig |
| Construction | — |
| Origin | Finland |
Dimensions
| LOA | 45.80 ft13.96 m |
|---|---|
| LWL | 45.80 ft13.96 m |
| Beam | 15.85 ft4.83 m |
| Draft (max) | 9.10 ft2.77 m |
| Displacement | 49,604 lb22,500 kg |
| Ballast | 18,900 lb8,573 kg |
| Sail Area | 1,885 ft²175.1 m² |
Design ratios
Computed from the specs above using the standard formulas. Try the sailboat calculators with your own numbers.
SA / Displacement 22.34 Performance / racer — powered up
Ballast / Displacement 38.1 % Higher = stiffer / more sail-carrying power
Displacement / Length 231 Moderate
Comfort Ratio 42.2 Heavy offshore
Capsize Screening 1.73 Suited to offshore passages (≤ 2.0)
Hull Speed 9.1 kn Theoretical max displacement speed
How these numbers are calculated
- SA / Displacement
SA ÷ (Disp ÷ 64)^(2/3)— Power-to-weight. < 16 under-canvassed, 16–20 cruiser, > 20 racer.- Ballast / Displacement
Ballast ÷ Disp × 100— Stability/stiffness. Higher carries sail better.- Displacement / Length
Disp(lt) ÷ (0.01 · LWL)³— < 100 ultralight, 100–200 light, 200–300 moderate, > 300 heavy.- Comfort Ratio (Brewer)
Disp ÷ (0.65 · (0.7·LWL + 0.3·LOA) · Beam^1.33)— Motion in a seaway. Higher = more comfortable offshore.- Capsize Screening
Beam ÷ (Disp ÷ 64)^(1/3)— ≤ 2.0 favored for offshore; > 2.0 better for coastal use.- Hull Speed
1.34 · √LWL— Theoretical max displacement speed in knots.
Estimated price
$57,500 typical range $46,000 – $69,000
⚠ Rough estimate only — not market data. Derived from a simple model based on length and hull age; actual asking prices vary widely with condition, equipment, engine hours and location.
