Allegro 27
Full keel
The Allegro 27 is a 26-foot sailboat.
General
| Builder | — |
|---|---|
| Designer | — |
| Years built | — |
| Hull type | Full keel |
| Rig type | — |
| Construction | — |
| Origin | — |
Dimensions
| LOA | 26.35 ft8.03 m |
|---|---|
| LWL | 24.02 ft7.32 m |
| Beam | 9.06 ft2.76 m |
| Draft (max) | 4.10 ft1.25 m |
| Displacement | 7,496 lb3,400 kg |
| Ballast | 2,866 lb1,300 kg |
| Sail Area | 334 ft²31.0 m² |
Design ratios
Computed from the specs above using the standard formulas. Try the sailboat calculators with your own numbers.
SA / Displacement 13.95 Under-canvassed — heavy-air / motorsailing
Ballast / Displacement 38.2 % Higher = stiffer / more sail-carrying power
Displacement / Length 241 Moderate
Comfort Ratio 24.9 Coastal cruiser
Capsize Screening 1.85 Suited to offshore passages (≤ 2.0)
Hull Speed 6.6 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.
Average used price
€6,200 typical asking price, used market
Average second-hand price reported by goodboats.ru. Actual prices vary with condition, equipment and location.
Data sources: goodboats.ru
