Landfall 39
Sino American Yacht Industrial Company · designed by Ron Amy · 1974
long keelCutter rigTaiwan
The Landfall 39 is a 39-foot cutter rig sailboat designed by Ron Amy and built by Sino American Yacht Industrial Company, first launched in 1974.
General
| Builder | Sino American Yacht Industrial Company |
|---|---|
| Designer | Ron Amy |
| Years built | 1974 |
| Hull type | long keel |
| Rig type | Cutter rig |
| Construction | fiberglass |
| Origin | Taiwan |
Dimensions
| LOA | 39.16 ft11.94 m |
|---|---|
| LWL | 30.58 ft9.32 m |
| Beam | 11.50 ft3.51 m |
| Draft (max) | 5.58 ft1.70 m |
| Displacement | 23,500 lb10,659 kg |
| Ballast | 8,800 lb3,992 kg |
| Sail Area | 811 ft²75.3 m² |
Design ratios
Computed from the specs above using the standard formulas. Try the sailboat calculators with your own numbers.
SA / Displacement 15.82 Under-canvassed — heavy-air / motorsailing
Ballast / Displacement 37.4 % Higher = stiffer / more sail-carrying power
Displacement / Length 367 Heavy — bluewater displacement
Comfort Ratio 42.4 Heavy offshore
Capsize Screening 1.61 Suited to offshore passages (≤ 2.0)
Hull Speed 7.4 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
$41,000 typical range $33,000 – $49,000
⚠ 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.