Swan 37
Nautor's Swan · designed by Sparkman & Stephens · 1970
finMasthead Sloop
The Swan 37 is a 37-foot masthead sloop sailboat designed by Sparkman & Stephens and built by Nautor's Swan, first launched in 1970.
General
| Builder | Nautor's Swan |
|---|---|
| Designer | Sparkman & Stephens |
| Years built | 1970 |
| Hull type | fin |
| Rig type | Masthead Sloop |
| Construction | fiberglass |
| Origin | — |
Dimensions
| LOA | 37.00 ft11.28 m |
|---|---|
| LWL | 27.00 ft8.23 m |
| Beam | 10.00 ft3.05 m |
| Draft (max) | 6.40 ft1.95 m |
| Displacement | 15,400 lb6,985 kg |
| Ballast | 7,300 lb3,311 kg |
| Sail Area | —— |
Design ratios
Computed from the specs above using the standard formulas. Try the sailboat calculators with your own numbers.
Ballast / Displacement 47.4 % Higher = stiffer / more sail-carrying power
Displacement / Length 349 Heavy — bluewater displacement
Comfort Ratio 36.9 Moderate bluewater
Capsize Screening 1.61 Suited to offshore passages (≤ 2.0)
Hull Speed 7.0 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
$36,000 typical range $29,000 – $43,000
⚠ 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.
