Cornish Crabber 17
Cornish Crabbers · designed by Roger Dongray · 1989
centreboardGaff rigUnited Kingdom
The Cornish Crabber 17 is a 17-foot gaff rig sailboat designed by Roger Dongray and built by Cornish Crabbers, first launched in 1989.
General
| Builder | Cornish Crabbers |
|---|---|
| Designer | Roger Dongray |
| Years built | 1989 |
| Hull type | centreboard |
| Rig type | Gaff rig |
| Construction | — |
| Origin | United Kingdom |
Dimensions
| LOA | 17.00 ft5.18 m |
|---|---|
| LWL | 16.00 ft4.88 m |
| Beam | 6.87 ft2.09 m |
| Draft (max) | 4.00 ft1.22 m |
| Displacement | 1,950 lb885 kg |
| Ballast | 217 lb98 kg |
| Sail Area | 178 ft²16.5 m² |
Design ratios
Computed from the specs above using the standard formulas. Try the sailboat calculators with your own numbers.
SA / Displacement 18.25 Cruiser — good all-round performance
Ballast / Displacement 11.1 % Higher = stiffer / more sail-carrying power
Displacement / Length 213 Moderate
Comfort Ratio 14.2 Racing / light coastal
Capsize Screening 2.20 Better suited to coastal use (> 2.0)
Hull Speed 5.4 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
$9,000 typical range $7,000 – $11,000
⚠ 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.
