Design and Construction
The Gulfstar 37 has a solid fiberglass hull and deck. Roughly 8,000 pounds of lead ballast gives her a 41 percent ballast-to-displacement ratio. At nearly 19,500 pounds displacement, with a waterline length just under 32 feet, her displacement-to-length ratio is 265.67. These figures place her among moderately heavy cruisers rather than light-displacement racers.
The fin keel draws 4.66 feet. A skeg-hung rudder provides a defined steering path aft of the keel. Gulfstar built the model as a fiberglass cruiser with lead ballast.
Rig, Performance, and Handling
The Gulfstar 37 carries a masthead sloop rig with a reported sail area of about 614 square feet. Her mast stands roughly 39 feet above the waterline.
A sail-area-to-displacement ratio of 13.61 and a comfort ratio of 33.50 put her in the easy-going cruising band rather than at the performance end. Her capsize screening figure is 1.76, suggesting that she was conceived more for sheltered and coastal waters than for open-ocean survival math.
The foretriangle accounts for 364 square feet of the total 649 square feet of 100 percent fore-and-main area, making a genoa-dependent rig inherent to the sail plan. Hull speed is near 7.6 knots. Overall, the numbers describe a steady, medium-displacement cruiser with predictable, forgiving motion rather than sparkling acceleration.
Accommodations and Tankage
Below, the Gulfstar 37 follows the layout of a period 37-foot cruiser, including its berth and galley arrangement. Her 11-foot-8-inch beam provides the transverse volume typical of a cruiser of this length.
Tankage comprises 80 gallons of water and 30 gallons of diesel in the auxiliary tank. Those capacities are modest by later standards but consistent with a 1970s 37-footer intended for weekend and seasonal cruising rather than indefinite liveaboard range.
The Verdict
The Gulfstar 37 is a straightforward, conventionally built coastal cruiser. Her moderate displacement, skeg-hung rudder, and lead-ballasted fin keel make her a predictable and serviceable used-boat proposition for sheltered and coastal sailing. However, modest tankage and a cruising-oriented sail plan weigh 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, providing defined steering and moderate draft
- Teak interior joinery consistent with the better Gulfstar finish of the period
Cons
- Only 30 gallons of fuel and 80 gallons of water, limiting range
- Cruising sail-area-to-displacement ratio and capsize figure suited to coastal rather than offshore waters
- A four-year production run that ended in 1979, meaning all examples are now decades old









