FairKeel → Buyer's guides → Pacific Seacraft 31

Pacific Seacraft 31

1987–1999 · designed by W.I.B. Crealock · built by Pacific Seacraft

The Pacific Seacraft 31 was designed by W.I.B. Crealock as a compact, serious bluewater cruiser drawing on his philosophy of seakindliness and structural integrity over speed. Introduced in 1987 as a smaller companion to his Crealock 37, it uses a modified fin keel and skeg-hung rudder with a transom stern — not a canoe stern — in a heavily built solid fiberglass hull. It targets shorthanded offshore passage-making and extended cruising for couples, prioritising ocean worthiness and long-range self-sufficiency in a sub-32-foot package.

This is a general read on the Pacific Seacraft 31 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.

See something that doesn't look right? We'd love to know — email us about the Pacific Seacraft 31 →

At a glance

Hull form: Fin Keel
Ballast: Bolt On Lead
Rudder: Skeg Hung
Mast step: Keel Stepped
Hull construction: Fiberglass
Production: 1987–1999
Built in: USA

What the Pacific Seacraft 31 is known for

Exceptionally well-built for its era — Pacific Seacraft's hand-laid solid fiberglass construction with Kevlar reinforcement and fit-and-finish were above average for production boats of the late 1980s–90s.
Keel-stepped aluminum mast on a heavily built hull gives the rig a structurally sound foundation appropriate for extended offshore use.
Skeg-hung rudder offers meaningful redundancy over a spade — the skeg protects the rudder in a grounding and the bearing arrangement is simpler to inspect and repair.
Strong resale retention and an active owner community mean parts knowledge, refit precedents, and peer experience are well-documented in online forums.
Crealock's offshore design brief prioritises seakindly motion and structural reserve over light-air speed — the boat is honest and predictable in deteriorating conditions.

Known trade-offs

Slow by modern standards — the heavy displacement and modest sail area (485–600 sq ft depending on cutter or sloop rig) mean passage times will be longer than contemporary lighter designs of similar length.
Teak decks on surviving examples are a near-universal liability; deck core remediation is one of the most common and expensive issues encountered on survey.
Bolt-on lead keel with stainless steel bolts requires careful inspection: crevice corrosion of the bolts within the hull is a known failure mode and is not always visible without invasive investigation.
Cockpit and interior volume are modest for the LOA; the transom-stern layout is more practical than a canoe stern but beam and headroom remain constrained relative to more modern 31-foot designs.
Aging engine fleet: most examples are on their original or first replacement Yanmar, and a repower budget should be assumed unless the engine has documented recent replacement.

Age-related quirks to expect

Osmotic blistering on early hulls Medium 1987–1993

Original Yanmar diesel reaching end of realistic service life Medium 1987–1995

Teak deck fastener weeping and core moisture intrusion High 1987–1999

Standing rigging age — wire or rod at or past offshore service life High 1987–1999

Interior joinery delamination from perennial deck-leak exposure Medium 1987–1999

Systems to check before you buy

Teak decks and underlying core priority: offshore, liveaboard, coastal

Teak decks are a defining feature of the class and a frequent source of deck-core moisture. Probe around chainplates, mast base, and all deck hardware bedding points. Wet core here escalates quickly and is expensive to remediate properly. Many owners have removed the teak entirely — check the repair quality of any bare-fiberglass deck.

Chainplates and hull-deck joint at rig attachment priority: offshore, coastal, weekending

Keel-stepped rig places high loads on the chainplate knees. Inspect for rust staining, crevice corrosion in the bolted-through plates, and any signs of movement or fatigued tabbing behind the liner. Chainplate replacement on this hull may require interior liner removal on some examples.

Diesel engine and raw-water cooling system priority: offshore, liveaboard, motor, coastal

Boats from the late 1980s–1990s carry engines that are 30–40 years old. Even rebuilt units should be surveyed for heat exchanger condition, impeller history, injection elbow corrosion, and transmission wear. A repower is realistic on many examples and should be budgeted before purchase.

Fin keel / keel-to-hull joint and keel bolts priority: offshore, coastal, liveaboard

The bolt-on lead keel uses stainless steel keel bolts bedded in epoxy. Inspect the keel-to-hull joint carefully for cracking, weeping, or movement. Stainless bolts can suffer crevice corrosion concealed within the hull laminate; a moisture survey and, on any offshore-bound boat, a haulout inspection of visible bolt hardware is essential.

Standing rigging and mast step priority: offshore, coastal, weekending, racing

Keel-stepped aluminum mast is a structural positive, but wire or rod rigging on older examples is frequently at or past its offshore service life (10–12 years for wire). Check mast step casting and collar for corrosion and fatigue cracking. Swage terminals are a common failure point on these vintage rigs.

How it fits your plans

Offshore: A credible sub-32-foot offshore choice — keel-stepped rig, heavily built solid fiberglass hull, and Crealock's offshore design philosophy make it a genuinely capable bluewater boat for shorthanded passages. The trade-off is a modest sail plan and deliberate pace; it handles heavy weather with composure but will not make aggressive miles.
Coastal: Comfortable and capable for coastal cruising. The modified fin keel gives better upwind performance and maneuverability than a full-keel design, while the skeg-hung rudder provides redundancy. A well-maintained example is an excellent coastal passages boat.
Liveaboard: The interior was designed with offshore living in mind — good sea berths, reasonable storage, and a layout suited to extended occupation. Beam and headroom are modest by liveaboard standards (6'1" headroom is workable); couples typically find it adequate but tight for long-term dock life.
Weekending: Capable for weekend passages. The skeg-hung rudder and fin keel offer reasonable upwind ability compared to full-keel contemporaries, making it more versatile than its reputation suggests. Better suited to planned passages than casual day sailing.
Racing: Not a racing boat. The heavy-displacement cruising design and conservative sail plan will be uncompetitive in any performance-oriented class or rating context.
Motor: Adequate motoring performance in calm conditions with the standard 27–30hp Yanmar, but range and fuel capacity are modest. Not suited to extended motoring passages.

Looking at a specific Pacific Seacraft 31? FairKeel reads the actual listing — photos, broker claims, comparable sales — and tells you what it isn't saying, what to ask the broker, and a defensible offer range. Free, in under a minute.

Run a free report on your listing →

Browse all used-boat buyer's guides →