The 23' Sonar one-design keelboat is a high-performance racer and a comfortable daysailor just right to get the entire family or friends on the water together. Bruce Kirby designed it, and almost 700 boats have been built since 1980. The Sonar has recently achieved status as an International Class.

 Download the Sonar Rigging Manual (PDF)

Overview

Performance

• Race competitively with three or four as crew.
• The Sonar surfs, and planes readily downwind.
• Well-balanced, inboard rudder.
• Faster than a J/24 in windy conditions.
• Strict one-design rules. 

Simplicity

• Clean and uncluttered cockpit.
• Nearly any size crew member can handle the small jib.
• Single jib, main, and spinnaker.
• 7'10" beam for easy trailering. 

Comfort

• 11'6" cockpit seats 8 comfortably.
• Full-length molded bench seats with angled backs.
• Self-bailing cockpit.
• Lockable cuddy under the foredeck holds gear, or an outboard motor, even a small Porta Potti.
• 900 lb. keel keeps the boat stable and dry.

Sonar Specifications

Sonar Parts and Lines

There is already a lot of great information about the Sonar a mouse click away. Check out some of these great sites:

• US Sonar Class Web Site contains information about Sonar fleets, events, and class membership.
• UK Sonar Class Web Site
• Doyle Tuning Guide for the Sonar.
• International Foundation Disabled Sailing gives information on all aspects of disabled sailing.

 

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