Mariner 31

BoatsMariner 31

See her sail

The Mariner 31, on the water

The fleet's own footage — the truest look at how she really moves.

Is it for you?

Character

Where this design lands on the numbers a shopper trusts — read straight from her own ratios.

Shoal draftDraws 1.12 m, board up where she has one — creeks, sandbars and thin anchorages most keels have to stay out of.

LivelySea-kindly

Her heavy displacement on a moderate beam gives 32 — a sea-kindly motion in a seaway.

Comfort ratio 32

CoastalBluewater

1.73 — just under the 2.0 offshore line; her beam is modest for her weight.

Capsize screening 1.73

LightHeavy

310 — heavy for her waterline, built to carry stores and ride steadily.

Displacement / length 310

EasygoingPowered-up

12.5 — modest power for her weight; easygoing rather than lively, and happier with a breeze.

Sail area / displacement 12.5

TenderStiff

43% of her weight is ballast — stiff, standing up well to her sails.

Ballast 43%

Built heavy and sea-kindly — a boat made to cross oceans and forgive a rough night.

Draws less than ~85% of boats her size on file

Compared with 412 boats of the same type within a quarter of her length.

What the fleet has seen

The Mariner 31, as the fleet has seen it

Derived from the videos the fleet has analysed of this model. ▶ marks open the moment aboard.

The Mariner 31 is a masthead ketch sailboat designed by C. Oberly and built by Far East Yachts from 1968 to the present. It features a long keel hull, measures 9.3 meters LOA, has a 3.0-meter beam, and draws 1.1 meters with a displacement of 5216 kg. The Mariner 31 was the first fiberglass hull produced by Far East Yachts, though its decks and cabintrunk were constructed from plywood covered with fiberglass. Variants of the design include the Mariner 32 and the Fuji 32. The model is not typically cited for offshore cruising suitability, with some similar-era boats under $50,000 being noted for design flaws or poor sailing performance.0:17

The living fleet

Sailed by the fleet

Where the fleet has filmed this boat.

Basemap © Wikimedia Commons · CC BY-SA 4.0

What they go for

Market signal

Where the fleet has seen this model for sale, and the asking prices that came with it.

1seen for sale

$3,599Median asking

Fractional ownership share offered by Flip Boat Club
from Hashtag Salseen November 2023watch

From the fleet's own footage — our observed signal, not broker listings.

The record

Full specifications

The complete reference set — tap any figure to switch between metric and imperial.

Dimensions

Weights

Ballast / displacement

43.5%

Rig & sail area

Rig

Masthead Ketch

Ratios

SA / displacement

12.5

Displacement / length

309.6

Comfort ratio

31.6

Capsize screening

1.73

Hull speed

6.8 kn

Pounds / inch immersion

888

Hull

Hull type

Long Keel

Construction

FG with wood deck and cabin

Production

Years built

First built 1968

Designer

C. Oberly

Builder

Far East Yachts

Boats like this, on the water

More boats like her, on the water

Comparable boats the fleet has on camera: same type, within a quarter of her length. Open the boat, or watch the video — a timestamp means she only appears in passing.

Mariner 329.70 mSame hull family0.4 m longerA long-keeled masthead ketch by Clair Oberly, featuring a distinctive Clipper bow and an open, taffrail-surrounded cockpit

Salt & Tar: Ep.286- Night Runner9:33 from Salt & Tar

Cape Dory 319.55 mSame hull family0.2 m longerA Carl Alberg-designed cutter with a long keel, built between 1983 and 1985 for traditional, steady offshore cruising

Cape Dory 31 Delivery0:01 from Hold Fast!

Allied Boat Co. Seawind9.30 mSame hull familyNear-identical lengthA Thomas Gillmer-designed masthead ketch with a long keel, marking both the beginning and the end of the Allied Boat Co.

Sailing Channel Theater: EP5 - Dancing With The Wind0:48 from TheSailingChannel.TV

Bayfield 30/329.75 mSame hull family0.4 m longerA rare 32C variant featuring a tall rig, built in a limited run of five hulls for increased sail area

Bayfield 32 Boat Tour - The Canadian Cruiser That Crossed the Atlantic from Practical Sailor

Nicholson 329.75 mSame hull family0.4 m longerA long-running production classic with a 55% ballast ratio, built over two decades for steady offshore passage making

GGR 2026 — The race — 2026-09-11 18:00-23:591:15:17 from Golden Globe Race Official

Cape Dory 30C9.21 mSame hull familyNear-identical lengthA cutter-rigged cruiser with a full keel and a 1.27-metre draft, built for steady performance between 1976 and 1987

DIY Retractable Solar Panels on Speed Rail Arch0:21 from Atom Voyager

The family

Related models

The designs closest to hers — usually the rest of the builder's range, sometimes the same hull sold under another name.

Mariner 32A long-keeled masthead ketch by Clair Oberly, featuring a distinctive Clipper bow and an open, taffrail-surrounded cockpit Mariner 35 (Garden)Marketed as the Far East 35 by George B. Walton Inc., this heavy-displacement ketch offers a stable 47.9 comfort ratio Mariner Yachts 31 (Spisak)A 9.55-metre fractional sloop available with either a centerboard or fin keel to meet EC Category B or C requirements Mariner 40 (Garden)A William Garden-designed masthead ketch with a long keel, built in wood and later fiberglass for offshore cruising Seafarer Yachts 31 MKIIA McCurdy & Rhodes masthead sloop featuring a fin keel and rudder on skeg, available with an alternative Palmer engine Fuji 32A heavy-displacement masthead ketch built from the same molds as the Mariner 31/32 for stable, long-keeled cruising

Keep asking

The fleet has more to say

Search what's been said about the Mariner 31, or ask a specific question — the answer comes back written out, with links to the moments it draws on.

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