Gulfstar 43
Gulfstar Yachts · designed by Vince & Richard Lazzara · 1971
long keelBermuda rigUnited States
The Gulfstar 43 is a 43-foot bermuda rig sailboat designed by Vince & Richard Lazzara and built by Gulfstar Yachts, first launched in 1971.
General
| Builder | Gulfstar Yachts |
|---|---|
| Designer | Vince & Richard Lazzara |
| Years built | 1971 |
| Hull type | long keel |
| Rig type | Bermuda rig |
| Construction | fiberglass |
| Origin | United States |
Dimensions
| LOA | 43.33 ft13.21 m |
|---|---|
| LWL | 39.16 ft11.94 m |
| Beam | 11.92 ft3.63 m |
| Draft (max) | 3.50 ft1.07 m |
| Displacement | 21,000 lb9,525 kg |
| Ballast | 5,000 lb2,268 kg |
| Sail Area | 664 ft²61.7 m² |
Design ratios
Computed from the specs above using the standard formulas. Try the sailboat calculators with your own numbers.
SA / Displacement 13.96 Under-canvassed — heavy-air / motorsailing
Ballast / Displacement 23.8 % Higher = stiffer / more sail-carrying power
Displacement / Length 156 Light
Comfort Ratio 29.6 Coastal cruiser
Capsize Screening 1.73 Suited to offshore passages (≤ 2.0)
Hull Speed 8.4 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
$49,500 typical range $39,500 – $59,500
⚠ 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.
