Design and Construction
The hull carries 12 feet of beam on a 30-foot-6-inch waterline. Displacement is 14,400 pounds, including 6,300 pounds of lead ballast. That gives the 381 a 43.75 percent ballast-to-displacement ratio, which promotes stability in offshore conditions.
Ericson built the boat in solid fiberglass, and the 381 has a reputation for sturdy construction. Maximum draft is 6.5 feet, while a 4.92-foot shoal-draft option offers owners a choice between the weatherly deep fin and a profile better suited to gunkholing.
Its limited production run has kept the 381 sought after by bluewater sailors looking for a blend of speed, seaworthiness, and elegance.
Rig and Handling
The 381 has a masthead sloop rig with a 47-foot foretriangle and a 42-foot-3-inch mainsail luff. Total sail area is 678 square feet, giving a sail-area-to-displacement ratio of 18.39 and respectable performance.
The standard jib has a 115 percent LP and 371 square feet of sail area. The 150 percent genoa increases that to 575 square feet, while the optional spinnaker measures 1,174 square feet on a 180 percent LP.
Paired with the fin keel and spade rudder, the 43.75 percent ballast ratio gives the boat the directional steadiness and responsive turn-in that a shorthanded offshore couple would expect from a King design of this size.
Accommodations
Below, the 381 sleeps up to five. That’s a practical berth count for a 37.5-foot hull, and the 12-foot beam provides livable sea-berth width without bloating the topsides.
The cabin plan is a cruising interior first. Its layout and berth count suit extended coastal and bluewater use rather than stripped-out racing.
Verdict
The Ericson 381 is a low-production Bruce King design that trades volume for offshore composure. It’s a stiff, well-ballasted 38-foot sloop with a genuine shoal-draft alternative and a sail plan scaled for shorthanded passage-making. Its scarcity makes a careful survey important, but the design ratios point to a capable, elegant cruiser.
Pros
- 43.75 percent ballast ratio promotes offshore stability
- Choice of a 6.5-foot deep fin or 4.92-foot shoal-draft option
- Comfortable five-berth interior in a 37.5-foot hull
- Sturdy solid-fiberglass construction
Cons
- Only 39 built, limiting spares and fleet knowledge
- Modest 18.39 sail-area-to-displacement ratio compared with lighter racers
