Sonar Information, Review, Specs

History and Design

The genesis of the Sonar began in 1979 when members of the Noroton Yacht Club in Darien, Connecticut, commissioned Bruce Kirby to design a fun and versatile keelboat. Kirby, renowned for his successful Laser dinghy, aimed to create a boat that would be exciting for club racing while remaining approachable for new sailors and comfortable for day sailing. Since its inception in 1980, over 860 Sonars have been built, establishing it as a prominent one-design class globally. The design's success led to its recognition as an International Class and its inclusion in the Paralympic Games, showcasing its adaptability for a wide range of sailors, including those with disabilities. The boat's construction typically features a hand-laid fiberglass hull with coremat coring, ensuring strength and impact resistance while adhering to strict one-design rules.

Sailing Performance and Handling

Despite its compact size, the Sonar is celebrated for its lively performance and remarkably easy handling. With a length overall of 23 feet and a waterline length of just under 20 feet, combined with a spade rudder and fin keel, the Sonar offers a responsive and agile sailing experience. Owners and reviewers frequently praise its well-balanced helm, which remains sensitive to changes in conditions, making it forgiving for less experienced sailors yet engaging for seasoned racers. The boat's design, featuring a fractional sloop rig with a mainsail, blade jib, and two spinnakers, simplifies sail handling and reduces the need for frequent headsail changes, contributing to its ease of use. It is known for its ability to stand up to wind and maintain its composure even in heavier conditions, providing a dry and comfortable ride. The Sonar's design philosophy emphasizes performance without requiring excessive crew weight on the rail, making it a popular choice for shorter-handed racing and casual outings.

Accommodations and Layout

As a dedicated one-design racer and day-sailor, the Sonar prioritizes a large, functional cockpit over extensive interior accommodations. The deck layout is designed for efficient sail handling and comfortable seating for multiple crew members or family. Below deck, the Sonar features a simple cuddy cabin, typically equipped with two bunks, providing basic shelter or a spot for gear storage. While headroom is not a feature of this type of boat, there is typically space for a small Porta-Potti, underscoring its primary role as a dayboat rather than an offshore cruiser. The interior finish is generally practical, focusing on durability and ease of maintenance suitable for a boat frequently used for racing and short excursions.

Owner's Perspectives

Owners consistently laud the Sonar for its solid construction and its versatility as both a competitive racing platform and a comfortable day-sailer. Many appreciate its ease of handling, highlighting that it does not demand a full crew of "heavies on the rail," making it accessible to a broader range of sailors. The Sonar is frequently described as a "fun boat" that offers a spirited sailing experience. Its reputation for being forgiving yet responsive contributes to its widespread appeal in sailing clubs and learn-to-sail programs. Owners often commend its stability and the comfortable motion it provides in various sea states, a testament to its well-engineered design. The active Sonar class association and online forums further underscore a strong community of dedicated owners who actively race, cruise, and share their experiences, speaking to the enduring legacy and functional design of the Sonar.