Allegra 24
Matrix Marine/Wilmette Boat Works · designed by Fred Bingham · 1984
long keelcutter rigUnited States
The Allegra 24 is a 24-foot cutter rig sailboat designed by Fred Bingham and built by Matrix Marine/Wilmette Boat Works, first launched in 1984.
General
| Builder | Matrix Marine/Wilmette Boat Works |
|---|---|
| Designer | Fred Bingham |
| Years built | 1984 |
| Hull type | long keel |
| Rig type | cutter rig |
| Construction | fiberglass |
| Origin | United States |
Dimensions
| LOA | 23.92 ft7.29 m |
|---|---|
| LWL | 20.83 ft6.35 m |
| Beam | 8.00 ft2.44 m |
| Draft (max) | 3.50 ft1.07 m |
| Displacement | 6,200 lb2,812 kg |
| Ballast | 2,200 lb998 kg |
| Sail Area | 359 ft²33.4 m² |
Design ratios
Computed from the specs above using the standard formulas. Try the sailboat calculators with your own numbers.
SA / Displacement 17.02 Cruiser — good all-round performance
Ballast / Displacement 35.5 % Higher = stiffer / more sail-carrying power
Displacement / Length 306 Heavy — bluewater displacement
Comfort Ratio 27.6 Coastal cruiser
Capsize Screening 1.74 Suited to offshore passages (≤ 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.
