The design reflects the Cruising Club of America ethos of the 1960s, combining elegant lines, seaworthiness, and lively performance for coastal or offshore cruising.
Design and Construction
King’s hull measures 36.5 feet overall, with a 28.33-foot waterline and 10.83-foot beam. Displacement is 14,000 pounds, including 5,000 pounds of lead ballast in a fin keel. The fiberglass hull and lead-ballasted fin put the Islander 37 among the heavier cruisers of its length, though its 36 percent ballast ratio is higher than only about a third of comparable designs.
Reviewers classify its displacement-length ratio of 275 as that of a “heavy cruiser,” although 46 percent of similar boats are heavier still. A length-to-beam ratio of 3.37 makes the hull slimmer than 69 percent of its peers, while wetted surface is about 344 square feet.
The Motion Comfort Ratio of 29.2 makes the boat more comfortable than 58% of all similar sailboat designs. Its capsize screening value of 1.80 also speaks to its offshore posture.
Rig, Performance, and Handling
The Islander 37 carries a masthead sloop rig. Its sail-plan figures classify it as significantly overrigged, with more rig than 82 percent of similar sailboats.
Reference sail area is 604.7 square feet, producing a sail-area-to-displacement ratio of 16.7. With a 135 percent genoa, that ratio rises to 19.7, placing the boat ahead of 46 percent of comparable designs in light wind.
The mainsail is roughly 300 square feet, and the working jib is about 303 square feet. Genoa options range from approximately 331 to 561 square feet. For downwind sailing, the inventory includes asymmetrical and symmetric spinnakers of up to 956 square feet.
Auxiliary power comes from a 30-horsepower Universal Atomic 4 gasoline engine driving a shaft. Calculated maximum speed under power is about 5.8 knots, compared with a theoretical hull speed of 7.1 knots.
Accommodations
Below, the Islander 37 has two cabins, a 4+2 berth arrangement, a galley, and a toilet facility. Like many boats of its period, the interior is finished in mahogany, and headroom is above average for the class.
The 10.83-foot beam and 28.33-foot waterline provide a livable interior for a mid-size cruiser, though without the volume found in later wide-beam designs.
Production, Kit Boats, and Ownership
In addition to boats built at Islander Yachts’ original Newport Beach facility, the Islander 37 was built at other yards, with later production under Tradewind Yachts. The distinctive Yachtcraft kit version, also known as the Yachtcraft 37, allowed buyers to complete the boat at home and reduce the purchase cost.
The Universal Atomic 4 remains the cited auxiliary engine. Its shaft-drive transmission is straightforward for period-correct upkeep.
Verdict
The Islander 37 is a CCA-era Bruce King cruiser-racer with genuine offshore credentials, a heavy-cruiser displacement profile, and an unusually tall rig for its size. Its modest production run and kit-built variant make it a niche but coherent choice for sailors who want classic lines and a seakindly motion.
Pros
- Bruce King design with CCA-era seaworthiness for coastal or offshore use
- Lead fin keel, 5,000 pounds of ballast, and 14,000 pounds of displacement provide a steady platform
- Masthead sloop rig with a broad sail-area range and overrigged light-air potential
- Above-average headroom and a mahogany, two-cabin interior
Cons
- The 36 percent ballast ratio is lower than that of most peers
- Gasoline-powered Atomic 4 inboard rather than a diesel
- Only about 50 to 60 boats built, limiting spares and the comparison fleet
