King was Ericson’s principal designer during this period, and the 37 reflects his mid-1970s approach: a fiberglass monohull with a fin keel, skeg-hung rudder, lead ballast, moderate displacement, and a sail plan intended for all-around cruising rather than outright speed.
Design and Construction
The Ericson 37 measures just over 37 feet overall, with a 28.5-foot waterline. She displaces 16,000 pounds and carries 8,000 pounds of lead ballast, giving her a 50 percent ballast-to-displacement ratio. That places her firmly toward the stable, seakindly end of the cruising spectrum for a boat of her size.
The hull is solid fiberglass, with a fin configuration and a rudder carried on a skeg. This separates directional control from the keel while keeping the underwater profile clean. The Ericson 37 predates the Tri-axial Force Grid system that the builder later introduced on its Ron Holland designs; this is a conventional solid-glass King hull, not a later-generation, grid-structured Ericson.
Her displacement-to-length ratio of 308 describes a boat of moderate heft rather than a lightweight racer. A comfort ratio of 31.28 reinforces her intended role as a vessel able to carry crew and stores without thrashing. The capsize screening figure of 1.80 falls where one would expect a bluewater-capable cruiser rather than a coastal weekender, while the hull speed derived from her waterline suggests she should hold her own on passage once the breeze fills.
Rig and Handling
The masthead-sloop rig carries a reported sail area of 613 square feet. That total comprises a 247-square-foot mainsail and a 366-square-foot foretriangle, with an I measurement of 48 feet and a J of just under 42 feet.
The resulting sail-area-to-displacement ratio of 15.50 is moderate. It provides enough sail to drive the 16,000-pound hull with reasonable purpose in a breeze without requiring a large crew to manage the canvas. A 12.8-meter mast height keeps the center of effort within reason for a boat of this displacement, and the skeg-rudder arrangement typically lends some steadiness to the helm when the boat is pressed.
With 11.33 feet of beam and a draft of 5.75 feet, the design balances interior volume against the ability to enter shallower anchorages than a deeper fin would permit.
Accommodations
Below, the Ericson 37 offers six feet three inches of headroom. The cabin trunk is proportioned for standing comfort rather than the low-slung interior of a racing boat.
The 11.33-foot beam gives the saloon and quarter layout useful width amidships, while the 28.5-foot waterline provides a reasonable fore-and-aft accommodation footprint for a 37-footer of the period. The layout follows the conventional masthead-sloop arrangement of the mid-1970s, distributing volume along the hull rather than concentrating it in a single great cabin.
Power and Systems
Auxiliary power comes from a single 30-horsepower Universal Atomic 4 gasoline engine, the standard period powerplant for a boat of this class and era. A modern buyer should note the gasoline installation, which has different fuel-storage and ventilation requirements from a diesel setup.
The Verdict
The Ericson 37 is a short-production, Bruce King-designed cruiser that combines a stable 50 percent ballast ratio and moderate displacement with a practical masthead rig and an interior offering good standing headroom. Its brief production run and distinct design pedigree make it a reasonably identifiable target for buyers who value a known pedigree over a long-running model line.
Pros
- Lead-ballasted fin hull, skeg-hung rudder, and 50 percent ballast ratio
- Six-foot-three-inch headroom and 11.33-foot beam provide a roomy interior with standing comfort
- Moderate 15.50 sail-area-to-displacement ratio suits a small crew
Cons
- Gasoline-powered Atomic 4 auxiliary rather than a diesel
- Brief 1973–1975 production run limits fleet size and later-era upgrades
