Irwin 41
Irwin Yachts · designed by Ted Irwin · 1982
fin keelBermuda rigUnited States
The Irwin 41 is a 42-foot bermuda rig sailboat designed by Ted Irwin and built by Irwin Yachts, first launched in 1982.
General
| Builder | Irwin Yachts |
|---|---|
| Designer | Ted Irwin |
| Years built | 1982 |
| Hull type | fin keel |
| Rig type | Bermuda rig |
| Construction | fiberglass |
| Origin | United States |
Dimensions
| LOA | 41.50 ft12.65 m |
|---|---|
| LWL | 35.08 ft10.69 m |
| Beam | 13.50 ft4.11 m |
| Draft (max) | 4.50 ft1.37 m |
| Displacement | 25,000 lb11,340 kg |
| Ballast | 8,000 lb3,629 kg |
| Sail Area | 803 ft²74.6 m² |
Design ratios
Computed from the specs above using the standard formulas. Try the sailboat calculators with your own numbers.
SA / Displacement 15.03 Under-canvassed — heavy-air / motorsailing
Ballast / Displacement 32.0 % Higher = stiffer / more sail-carrying power
Displacement / Length 259 Moderate
Comfort Ratio 32.6 Moderate bluewater
Capsize Screening 1.85 Suited to offshore passages (≤ 2.0)
Hull Speed 7.9 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
$49,000 typical range $39,000 – $59,000
⚠ 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.