Contest 25 OC
Conyplex · designed by Jacques De Ridder · 1982
fin keelBermuda rigNetherlands
The Contest 25 OC is a 25-foot bermuda rig sailboat designed by Jacques De Ridder and built by Conyplex, first launched in 1982.
General
| Builder | Conyplex |
|---|---|
| Designer | Jacques De Ridder |
| Years built | 1982 |
| Hull type | fin keel |
| Rig type | Bermuda rig |
| Construction | — |
| Origin | Netherlands |
Dimensions
| LOA | 24.61 ft7.50 m |
|---|---|
| LWL | 20.51 ft6.25 m |
| Beam | 9.02 ft2.75 m |
| Draft (max) | 4.92 ft1.50 m |
| Displacement | 3,788 lb1,718 kg |
| Ballast | 1,510 lb685 kg |
| Sail Area | 306 ft²28.4 m² |
Design ratios
Computed from the specs above using the standard formulas. Try the sailboat calculators with your own numbers.
SA / Displacement 20.15 Performance / racer — powered up
Ballast / Displacement 39.9 % Higher = stiffer / more sail-carrying power
Displacement / Length 196 Light
Comfort Ratio 14.4 Racing / light coastal
Capsize Screening 2.31 Better suited to coastal use (> 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
$17,500 typical range $14,000 – $21,000
⚠ 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.
