Catalina 309
Catalina Yachts · designed by Gerry Douglas · 2005
fin keelFractional rigged sloopUnited States
The Catalina 309 is a 33-foot fractional rigged sloop sailboat designed by Gerry Douglas and built by Catalina Yachts, first launched in 2005.
General
| Builder | Catalina Yachts |
|---|---|
| Designer | Gerry Douglas |
| Years built | 2005 |
| Hull type | fin keel |
| Rig type | Fractional rigged sloop |
| Construction | fiberglass |
| Origin | United States |
Dimensions
| LOA | 32.75 ft9.98 m |
|---|---|
| LWL | 26.50 ft8.08 m |
| Beam | 11.50 ft3.51 m |
| Draft (max) | 6.25 ft1.91 m |
| Displacement | 9,800 lb4,445 kg |
| Ballast | 4,000 lb1,814 kg |
| Sail Area | 523 ft²48.6 m² |
Design ratios
Computed from the specs above using the standard formulas. Try the sailboat calculators with your own numbers.
SA / Displacement 18.27 Cruiser — good all-round performance
Ballast / Displacement 40.8 % Higher = stiffer / more sail-carrying power
Displacement / Length 235 Moderate
Comfort Ratio 20.6 Coastal cruiser
Capsize Screening 2.15 Better suited to coastal use (> 2.0)
Hull Speed 6.9 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
$41,500 typical range $33,000 – $50,000
⚠ 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.
