Newport 30
Lindsay Plastics/Capital Yachts Inc. · designed by Gary Mull · 1968
fin keelMasthead sloopUnited States
The Newport 30 is a 30-foot masthead sloop sailboat designed by Gary Mull and built by Lindsay Plastics/Capital Yachts Inc., first launched in 1968.
General
| Builder | Lindsay Plastics/Capital Yachts Inc. |
|---|---|
| Designer | Gary Mull |
| Years built | 1968 |
| Hull type | fin keel |
| Rig type | Masthead sloop |
| Construction | fiberglass |
| Origin | United States |
Dimensions
| LOA | 30.00 ft9.14 m |
|---|---|
| LWL | 25.00 ft7.62 m |
| Beam | 10.50 ft3.20 m |
| Draft (max) | 4.75 ft1.45 m |
| Displacement | 7,500 lb3,402 kg |
| Ballast | 2,500 lb1,134 kg |
| Sail Area | 409 ft²38.0 m² |
Design ratios
Computed from the specs above using the standard formulas. Try the sailboat calculators with your own numbers.
SA / Displacement 17.08 Cruiser — good all-round performance
Ballast / Displacement 33.3 % Higher = stiffer / more sail-carrying power
Displacement / Length 214 Moderate
Comfort Ratio 19.1 Racing / light coastal
Capsize Screening 2.15 Better suited to coastal use (> 2.0)
Hull Speed 6.7 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
$23,500 typical range $19,000 – $28,000
⚠ 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.
