Seidelmann 245
Seidelmann Yachts · designed by Bob Seidelmann · 1981
stub keel with centerboardBermuda rigUnited States
The Seidelmann 245 is a 24-foot bermuda rig sailboat designed by Bob Seidelmann and built by Seidelmann Yachts, first launched in 1981.
General
| Builder | Seidelmann Yachts |
|---|---|
| Designer | Bob Seidelmann |
| Years built | 1981 |
| Hull type | stub keel with centerboard |
| Rig type | Bermuda rig |
| Construction | fiberglass |
| Origin | United States |
Dimensions
| LOA | 24.18 ft7.37 m |
|---|---|
| LWL | 20.50 ft6.25 m |
| Beam | 8.00 ft2.44 m |
| Draft (max) | 4.42 ft1.35 m |
| Displacement | 3,000 lb1,361 kg |
| Ballast | 1,300 lb590 kg |
| Sail Area | 267 ft²24.8 m² |
Design ratios
Computed from the specs above using the standard formulas. Try the sailboat calculators with your own numbers.
SA / Displacement 20.54 Performance / racer — powered up
Ballast / Displacement 43.3 % Higher = stiffer / more sail-carrying power
Displacement / Length 155 Light
Comfort Ratio 13.4 Racing / light coastal
Capsize Screening 2.22 Better suited to coastal use (> 2.0)
Hull Speed 6.1 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
$16,500 typical range $13,000 – $20,000
⚠ 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.
