Designed by renowned Swedish naval architect Lars Olof Norlin and built by Acva-Båt from 1967 to 1981, this masthead sloop represents solid Scandinavian craftsmanship from sailing's golden era. With 350 hulls produced over its 14-year production run, the Allegro 27 earned a reputation as a dependable coastal cruiser well-suited for Northern European conditions. The boat's long keel configuration and substantial ballast-to-displacement ratio of 44% provide excellent directional stability and seaworthiness, making it particularly appealing for offshore passages and extended cruising. At 26.35 feet overall with a modest sail area of 323 square feet, this design prioritizes comfort and security over speed, reflected in its impressive comfort ratio of 21.62. The conservative capsize screening value of 1.94 indicates good stability characteristics for ocean sailing. Norlin's design emphasizes traditional sailing qualities with modern fiberglass construction, creating a boat that tracks well in heavy weather while remaining manageable for smaller crews. The moderate beam and deep draft contribute to respectable sailing performance, while the long keel provides protection for the propeller and rudder when exploring shallow anchorages. This classic design appeals to sailors seeking a proven, seaworthy pocket cruiser with timeless Scandinavian styling.
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What is the Allegro 27's sail area to displacement ratio?
The Allegro 27 has a Sail Area to Displacement ratio (SA/D) of 14.88. Values between 14–18 are typical cruising sailboats; 18–22 is cruiser/racer; over 22 is performance racing.
What is the Allegro 27's comfort ratio?
The Allegro 27 has a Ted Brewer Comfort Ratio of 21.62. A ratio over 30 indicates good offshore comfort; over 40 is very comfortable offshore.
Is the Allegro 27 safe for offshore sailing?
The Allegro 27 has a Capsize Screening Formula value of 1.94. Values under 2.0 are considered acceptable for offshore sailing; under 1.8 is ideal.
What is the hull speed of the Allegro 27?
The theoretical hull speed of the Allegro 27 is 6.57 kn knots, calculated from its waterline length.
How much does a Allegro 27 weigh?
The Allegro 27 has a displacement of 6,504.00 lb and a length overall (LOA) of 26.35 ft.
Who designed the Allegro 27?
The Allegro 27 was designed by Lars Olof Norlin, first built in 1967.