Columbia 34 Mark II
Columbia Yachts · designed by William Tripp Jr. · 1970
fin keelBermuda rigUnited States
The Columbia 34 Mark II is a 34-foot bermuda rig sailboat designed by William Tripp Jr. and built by Columbia Yachts, first launched in 1970.
General
| Builder | Columbia Yachts |
|---|---|
| Designer | William Tripp Jr. |
| Years built | 1970 |
| Hull type | fin keel |
| Rig type | Bermuda rig |
| Construction | fiberglass |
| Origin | United States |
Dimensions
| LOA | 33.58 ft10.24 m |
|---|---|
| LWL | 27.33 ft8.33 m |
| Beam | 10.00 ft3.05 m |
| Draft (max) | 5.50 ft1.68 m |
| Displacement | 12,000 lb5,443 kg |
| Ballast | 4,700 lb2,132 kg |
| Sail Area | 526 ft²48.9 m² |
Design ratios
Computed from the specs above using the standard formulas. Try the sailboat calculators with your own numbers.
SA / Displacement 16.06 Cruiser — good all-round performance
Ballast / Displacement 39.2 % Higher = stiffer / more sail-carrying power
Displacement / Length 262 Moderate
Comfort Ratio 29.6 Coastal cruiser
Capsize Screening 1.75 Suited to offshore passages (≤ 2.0)
Hull Speed 7.0 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
$29,500 typical range $23,500 – $35,500
⚠ 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.
