Alberg Odyssey 30
designed by Carl Alberg · 1960
fin keelFractional rigged sloopUnited States
The Alberg Odyssey 30 is a 30-foot fractional rigged sloop sailboat designed by Carl Alberg, first launched in 1960.
General
| Builder | — |
|---|---|
| Designer | Carl Alberg |
| Years built | 1960 |
| Hull type | fin keel |
| Rig type | Fractional rigged sloop |
| Construction | fiberglass |
| Origin | United States |
Dimensions
| LOA | 30.30 ft9.24 m |
|---|---|
| LWL | 21.00 ft6.40 m |
| Beam | 8.75 ft2.67 m |
| Draft (max) | 4.50 ft1.37 m |
| Displacement | 11,000 lb4,990 kg |
| Ballast | 3,600 lb1,633 kg |
| Sail Area | —— |
Design ratios
Computed from the specs above using the standard formulas. Try the sailboat calculators with your own numbers.
Ballast / Displacement 32.7 % Higher = stiffer / more sail-carrying power
Displacement / Length 530 Heavy — bluewater displacement
Comfort Ratio 39.7 Moderate bluewater
Capsize Screening 1.57 Suited to offshore passages (≤ 2.0)
Hull Speed 6.1 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
$23,000 typical range $18,500 – $27,500
⚠ 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.
