Bostrom 31

Designed by Bruno Boström and Grandinsson in the early 1970s, this Swedish 31-footer represents the Nordic tradition of building sturdy, seaworthy cruising sailboats. With its fiberglass construction and classic fin keel with rudder on skeg configuration, the Bostrom 31 strikes a thoughtful balance between performance and stability that has earned respect among serious coastal cruisers. The boat's substantial displacement of 7,782 pounds and deep 5.91-foot draft contribute to excellent stability and tracking ability, while nearly half that weight in ballast ensures a stiff, comfortable ride in challenging conditions. The masthead sloop rig with 370 square feet of sail area provides adequate power without being overwhelming for short-handed sailing. What sets this design apart is its moderate proportions and seakindly nature. The comfort ratio of 23.32 indicates a motion that won't exhaust the crew on longer passages, while the capsize screening formula of 1.83 falls well within accepted offshore sailing parameters. These characteristics make the Bostrom 31 particularly well-suited for coastal cruising and moderate offshore passages where reliability and crew comfort take precedence over pure speed. The hull's theoretical speed of 6.83 knots provides respectable performance for weekend cruising and extended voyaging alike.

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