1970–1979 · designed by Bruce King · built by Ericson Yachts
The Ericson 39 was designed as a capable offshore cruiser-racer, drawing on Bruce King's reputation for seakindly, balanced hulls that could compete on the race course while remaining comfortable for extended passages. Built in California by Ericson Yachts during their production peak, the 39 was aimed at the serious bluewater-capable end of the production sailboat market rather than the weekend coastal sailor. It earned a reputation as a stiff, forgiving sea boat with good upwind performance and enough interior volume for liveaboard use, though it was never the fastest racer of its era.
This is a general read on the Ericson 39 class — informed
background, not a verdict on any individual boat. Condition, refit history,
and how a particular hull was sailed and stored matter far more than class
reputation. Use it to know what to look for; for a read on a specific
listing, run a free FairKeel report on that boat.
Skeg-hung rudder provides redundancy and directional stability in following seas — a meaningful offshore safety advantage over spade-rudder contemporaries.
Keel-stepped mast and moderate sail plan are conservative by design, reducing rig loads and making the boat manageable short-handed in strong conditions.
Bruce King hull form is known for a comfortable, predictable motion in a seaway, with good initial and secondary stability for a fin-keel design of the era.
Strong owner community (EY.o forum) and documented production history makes parts sourcing, refit guidance, and comparable sales relatively accessible for a boat of this age.
Known trade-offs
Balsa-cored deck is a near-universal liability on 40-50 year old hulls — wet core is expensive to remediate and difficult to fully assess without destructive testing.
Chainplate geometry buries the attachment hardware behind the liner, making inspection and reseating difficult and meaning many boats carry unchecked corrosion at a critical structural point.
Interior fit-out and systems are dated by modern standards — limited 12V capacity, small tankage, and aging plumbing typically require a full systems refit for extended liveaboard or offshore use.
Resale market is narrow and price-sensitive; a heavily invested Ericson 39 rarely returns refit costs on sale, making the economics punishing for buyers who underestimate the work required.
Age-related quirks to expect
Osmotic blistering on hull bottomMedium1970-1979
Balsa core deck delamination and rot from fastener intrusionHigh1970-1979
Original Atomic 4 or early Universal diesel nearing or past end of service lifeMedium1970-1977
Standing rigging age — many hulls retain original or single-replacement rod/wire at 40-50+ yearsHigh1970-1979
Chainplate attachment weeping, corrosion, and bulkhead delamination at chainplate kneesHigh1970-1979
Balsa-cored deck absorbs water at any penetration — stanchion bases, chainplate exits, and hardware bedding are the primary entry points. Soft spots are common on 40-50 year old hulls. Chainplate knees behind the liner are prone to hidden delamination and corrosion; pull the backing plates to inspect.
Standing rigging and mast steppriority: offshore, coastal, racing
Keel-stepped mast means a failing rig goes through the boat. Inspect the mast boot, bilge below the step for standing water, and the partner compression post for delamination. Wire rigging past 10 years or rod rigging past 15-20 years warrants replacement before any offshore passage.
Encapsulated keel — root and void integritypriority: offshore, coastal, liveaboard
The Ericson 39 has an encapsulated lead keel — there are no external keel bolts to replace, but the fiberglass encapsulation is the concern. Inspect the keel root for osmotic damage, delamination, and any cracking in the glasswork at the hull-keel junction. Internal voids are a known issue on this generation; a moisture meter survey and careful visual inspection at the keel root are essential.
Engine and raw water coolingpriority: coastal, liveaboard, motor
Early hulls may carry Atomic 4 gasoline engines that are difficult to insure and part-starved; later hulls have Universal or Westerbeke diesels approaching high hours. Raw water impeller, heat exchanger, and exhaust elbow are first-priority inspection items on any diesel installation.
Osmotic blistering is common across this production era. A moisture meter survey with the boat hauled is essential. Active blistering requires a full barrier coat job after drying; deferred blistering accelerates structural degradation in the laminate over time.
How it fits your plans
Offshore
Capable bluewater boat when rigging, encapsulated keel, and chainplates are in verified condition — the hull form is seakindly and the skeg-hung rudder is a meaningful safety asset offshore. Budget for a thorough pre-passage refit on any unvetted hull; the class age means deferred maintenance is the rule rather than the exception.
Coastal
A solid coastal cruiser with comfortable motion and adequate performance. Age-related deck and rig issues are manageable at coastal pace where haul-outs and yard access are easy. Well-suited to experienced coastal sailors who are comfortable maintaining an older GRP boat.
Liveaboard
Adequate interior volume for a couple; the 39-foot LOA gives reasonable living space by production standards of the era. Older electrical systems, limited tankage, and a potentially tired engine are the practical friction points for full-time use.
Weekending
Capable and comfortable for weekend sailing if the boat has been maintained. Buyers focused on weekending should not let the 'just weekending' use-case lower their survey threshold — age-related structural issues do not care how far offshore you sail.
Racing
Competitive in PHRF club racing in the right fleet, though hull-speed and polar performance are firmly cruiser-racer rather than dedicated racer. Useful as a budget entry to IRC/PHRF racing where the class has a local rating history.
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