Allegro 27
Description
The Allegro 27 is a classic Swedish cruising sailboat designed by renowned naval architect Lars Olof Norlin in the mid-1960s as the winner of a design competition sponsored by the Koster Class Association. Produced by ACVA-Båt AB from 1967 to 1981, with around 300-400 hulls built, it features a distinctive double-ender hull with canoe stern, full long keel, and masthead sloop rig, emphasizing seaworthiness, stability, and traditional aesthetics for coastal and bluewater passages. This 27-foot fiberglass monohull balances performance with comfort, offering a spacious interior for its size (up to 5 berths) and a generous sail plan that excels in light airs while providing stiff handling in breeze. Ideal for couples or small families seeking a capable, easy-to-maintain cruiser, the Allegro 27 is praised for its robust construction (solid GRP hull, balsa-cored deck) and forgiving nature, making it a favorite among Scandinavian sailors and classic boat enthusiasts for weekend gunkholing or longer voyages.
Construction Details
| Designer | Lars Olof Norlin |
|---|---|
| Builder | ACVA-Båt AB |
| LOA | 26.350 ft |
| LWL | 24.020 ft |
| Beam | 9.050 ft |
| Displacement | 6504 lb |
| Ballast | 2866 lb |
| Max Draft | 4.100 ft |
| Year Built | 1967 |
The standard boat dimensions
| i | 32.71 ft |
|---|---|
| j | 10.24 ft |
| p | 28.22 ft |
| e | 10.99 ft |
| p2 | - |
| e2 | - |
| i2 | - |
| j2 | - |
| I | J | P | E | P2 | E2 | I2 | J2 |
|---|---|---|---|---|---|---|---|
| 32.71 ft | 10.24 ft | 28.22 ft | 10.99 ft | - | - | - | - |
Sails
Allegro 27 - MAINSAIL
| Luff | * 28.22 ft - (8601 mm) |
|---|---|
| Foot | * 10.99 ft - (3350 mm) |
| Leech | * 29.68 ft - (9046 mm) |
| Tack Angle | * 88 ° |
| Diagonal | * 29.92 ft - (9120 mm) |
| Head (inches) | * 5.25 in - (133 mm) |
| Area | * 160.42 ft² |
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Allegro 27 - JIBSAIL
| Luff | 29.5 ft - (8992 mm) |
|---|---|
| Foot | 12.83 ft - (3911 mm) |
| Leech | 26 ft - (7925 mm) |
| Percentage LP | * 110.35 % |
| Length Perpendicular | * 11.3 ft - (3444 mm) |
| Deck Angle | * 10.92 ° |
| Area | * 166.63 ft² |
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Allegro 27 - JIBSAIL
| Luff | * 27.42 ft - (8358 mm) |
|---|---|
| Foot | * 13.52 ft - (4121 mm) |
| Leech | * 23.89 ft - (7282 mm) |
| Percentage LP | * 115.04 % |
| Length Perpendicular | * 11.78 ft - (3591 mm) |
| Deck Angle | * 12.01 ° |
| Area | * 161.5 ft² |
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Allegro 27 - GENOA
| Luff | * 32.56 ft - (9924 mm) |
|---|---|
| Foot | * 16.5 ft - (5029 mm) |
| Leech | * 30.66 ft - (9345 mm) |
| Percentage LP | * 150 % |
| Length Perpendicular | * 15.36 ft - (4682 mm) |
| Deck Angle | * 4.04 ° |
| Area | * 250.07 ft² |
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Allegro 27 - ASYMMETRICAL
| Luff | 33.5 ft - (10211 mm) |
|---|---|
| Foot | 18 ft - (5486 mm) |
| Leech | 30.5 ft - (9296 mm) |
| Perc LP | * 165 % |
| Area | * 452 ft² |
| Edit in Calculator | |
Disclaimer. Boats are not all the same -- even when produced in the same factory of the same model. Sailrite does its best to publish accurate dimensions, but we often find it worthwhile to have our customers measure their boats carefully before we produce kits for them. You should take the same precautions, especially when the data is not from Sailrite. The information on this site is not guaranteed to be accurate. Sailrite offers this content as a service to our community, but takes no responsibility for the reliability of the data provided.