Norlin and Östmann’s design partnership shaped nearly every Sweden Yachts production model from the mid-1980s through 2009. With a 29-foot-6-inch waterline, 12-foot-1-inch beam, and displacement of roughly 15,300 pounds—including 6,063 pounds of lead ballast—the 370 has the proportions of a thoughtful Scandinavian cruiser-racer rather than a mass-market charter boat.
Design and Construction
The hull and deck are fiberglass. Sweden Yachts built the hull as a sandwich structure, using hand-laid end-grain balsa core and isophthalic resin from the toe rail to below the waterline. Solid laminate is used around the keel, mast foot, and hull-halve joint, in keeping with the builder’s hull-and-deck construction.
Two keel options left the factory. The fin keel draws about 6 feet 9 inches to 7 feet 3 inches, depending on load, while the wing keel reduces draft to roughly 5 feet 7 inches to 5 feet 11 inches. A spade rudder completes the underwater profile.
The ballast ratio is 40 percent, the displacement-length ratio 266, and the length-to-beam ratio 3.03. Together, those figures describe a moderately heavy, beamy hull carrying a substantial proportion of ballast for its size. The wetted surface of the bottom is about 419 square feet, and immersion is roughly 1,242 pounds per inch—useful figures when considering loading and trim.
Rig and Handling
The 370 carries a fractional sloop rig. Its reference sail-area-to-displacement ratio is 17.4, rising to 20.8 with a 135 percent genoa. That points to a reasonably powered cruiser without pushing into over-canvased territory.
Halyard and sheet estimates in the design record specify 36.5 meters for the three 12 mm halyards, 11.2 meters for 14 mm jib and genoa sheets, and a 27.9-meter, 14 mm mainsheet. Spinnaker gear and reefing lines are sized consistently for offshore use.
The theoretical hull speed is 7.3 knots, while the calculated maximum speed is about 5.6 knots. A capsize screening value of 1.94 and Motion Comfort Ratio of 26.9 suggest a stable, tolerably easy motion profile for a 37-footer.
Accommodations
Below, the 370 has three cabins, four-plus-two berths, a galley, and a toilet facility. Mahogany joinery gives the interior the period-standard finish found in many contemporary boats from the yard rather than anything especially exotic.
Fitting three cabins into a hull under 37 feet produces a cruising-oriented layout that still preserves a separate owner’s space forward or aft, along with guest quarters. The six berths allow a small crew or family to sleep aboard without relying solely on converting the saloon. The galley and head make this a self-contained cruising interior rather than a stripped-out weekender.
Machinery and Tankage
Auxiliary power comes from a 30-horsepower Volvo Penta diesel. Fuel capacity is 40 gallons, and water capacity is 53 gallons. Together with the choice of fin or wing keel, these specifications give prospective owners clear parameters for spares and rig tuning.
Known Issues
The sandwich hull and balsa-cored deck were conventional for the builder and the period. The boat also uses a through-bolted aluminum toe rail installed over sealing material. Any concerns would follow the usual inspection practices for aging balsa-core decks rather than point to a model-specific fault.
Only 36 boats were completed, so field reports are scarce. Even so, the available construction record identifies no known weak point unique to the 370.
Refits and Ownership
Owning a 370 means looking after a low-production Sweden Yachts model from the Peter Norlin and Jens Östmann years. It was built before the yard’s 2008 bankruptcy and the later revivals of the brand.
Because so few were produced, owners are more likely to draw on familiarity with the broader Sweden Yachts family than on a deep model-specific network. The lead ballast and solid high-stress laminate also simplify keel-structure assessment compared with lighter-core cruisers.
The Verdict
The Sweden Yachts 370 is a small-series, well-found Scandinavian cruiser. It combines a balsa-cored sandwich hull with solid laminate in high-load areas, a moderately powered fractional rig, and a practical three-cabin interior finished in mahogany.
It isn’t a common sight, but the design record presents a coherent, seaworthy proposition for sailors who value substantial construction over volume production.
Pros
- Lead-ballasted fin or wing keel, with a 40 percent ballast ratio and stable capsize screening value
- Sandwich fiberglass hull with solid laminate around the keel, mast foot, and hull joint
- Three cabins and six berths in a cruising layout under 37 feet
Cons
- Only 36 built, limiting owner-network and spares familiarity
- Wing-keel draft still starts near 5 feet 7 inches, restricting some shallow-water cruising
- No model-specific upgrades or later-generation improvements after 1998
