Alberg 30
Whitby Boat Works · designed by Carl Alberg · 1962
long keelMasthead sloopCanada
The Alberg 30 is a 30-foot masthead sloop sailboat designed by Carl Alberg and built by Whitby Boat Works, first launched in 1962.
General
| Builder | Whitby Boat Works |
|---|---|
| Designer | Carl Alberg |
| Years built | 1962 |
| Hull type | long keel |
| Rig type | Masthead sloop |
| Construction | fiberglass |
| Origin | Canada |
Dimensions
| LOA | 30.27 ft9.23 m |
|---|---|
| LWL | 21.67 ft6.61 m |
| Beam | 8.75 ft2.67 m |
| Draft (max) | 4.29 ft1.31 m |
| Displacement | 9,000 lb4,082 kg |
| Ballast | 3,300 lb1,497 kg |
| Sail Area | 410 ft²38.1 m² |
Design ratios
Computed from the specs above using the standard formulas. Try the sailboat calculators with your own numbers.
SA / Displacement 15.16 Under-canvassed — heavy-air / motorsailing
Ballast / Displacement 36.7 % Higher = stiffer / more sail-carrying power
Displacement / Length 395 Heavy — bluewater displacement
Comfort Ratio 31.9 Moderate bluewater
Capsize Screening 1.68 Suited to offshore passages (≤ 2.0)
Hull Speed 6.2 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.
