Design and Construction
The Gulfstar 37 is fiberglass throughout, with a solid fiberglass hull and deck and a lead ballast of roughly 8,000 pounds set in a 41 percent ballast-to-displacement ratio anchor. At a displacement near 19,500 pounds and a length-on-waterline of just under 32 feet, her displacement-to-length ratio of 265.67 marks her as a moderately heavy cruiser rather than a light-displacement racer. The fin keel draws 4.66 feet, and the skeg-hung rudder gives her a defined steerage path aft of the keel. Gulfstar Yachts built the model between 1976 and 1979 as a fiberglass cruiser with lead ballast.
Rig and Handling
She carries a masthead sloop rig with a reported sail area of about 614 square feet and a mast standing roughly 39 feet above the waterline. The sail-area-to-displacement ratio of 13.61 and a comfort ratio of 33.50 place her in the easy-going cruising band rather than the performance end, while a capsize screening figure of 1.76 suggests she was conceived for sheltered and coastal waters more than open-ocean survival math. The foretriangle drives 364 square feet of the total 649 square feet of 100 percent fore-and-main area, so a genoa-dependent rig is inherent to her sail plan. With a hull speed near 7.6 knots, she is a steady medium-displacement cruiser whose numbers describe predictable, forgiving motion rather than sparkling acceleration.
Accommodations and Tankage
Below, the Gulfstar 37 was laid out for extended coastal cruising with 80 gallons of water capacity and 30 gallons of diesel in her auxiliary tank. Those figures are modest by later standards but consistent with a 1970s 37-footer intended for weekend and seasonal use rather than indefinite liveaboard range. The 11-foot-8-inch beam provides the transverse volume typical of a cruiser of her length. Her berth and galley arrangement follows a period 37-foot cruiser layout.
The Verdict
The Gulfstar 37 is a straightforward, conventionally built coastal cruiser from Gulfstar Yachts. Her moderate displacement, skeg rudder, and lead-ballasted fin keel make her a predictable and serviceable used-boat proposition for sheltered and coastal sailing, though her modest tankage and cruising-oriented sail plan argue against long-range self-sufficiency.
Pros
- Hand-laid fiberglass and encapsulated lead ballast from Gulfstar's upgraded build era
- Skeg-hung rudder and fin keel for defined steering and moderate draft
- Teak interior joinery consistent with the period's better Gulfstar finish
Cons
- Only 30 gallons of fuel and 80 gallons of water limit range
- Cruising sail-area-to-displacement ratio and capsize figure suit coastal waters, not offshore
- Four-year production window ended in 1979, so all examples are now decades old









