BoatsWesterly Yachts Ltd. Discus 33

Westerly Yachts Ltd. Discus 33

Masthead Sloop · Fin w/rudder On Partial Skeg · 1979–1984

An aft-cockpit evolution of the Westerly 33, featuring a masthead rig and the choice of fin or twin keels

Designed by Laurent Giles & Jack Laurent Giles.

LOA
Beam
Draft (max)
Displacement
Ballast
Hull type
Fin w/rudder On Partial Skeg

See her sail

The Westerly Yachts Ltd. Discus 33, on the water

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

Footage from Sailing Sea Dream of Clyde

Is it for you?

Character

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

LivelySea-kindly

Her heavy displacement on a moderate beam gives 31 — a sea-kindly motion in a seaway.

Comfort ratio 31
CoastalBluewater

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

Capsize screening 1.81
LightHeavy

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

Displacement / length 292
EasygoingPowered-up

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

Sail area / displacement 13.8
TenderStiff

40% of her weight is ballast — moderately stiff, a middle-of-the-road stability.

Ballast 40%

A capable cruiser that sits just inside the offshore line — coastal work with real passages in her.

  • Heavier than ~78% of boats her size on file

Compared with 2903 boats of the same type within a quarter of her length.

What the fleet has seen

The Westerly Yachts Ltd. Discus 33, as the fleet has seen it

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

The Westerly Yachts Ltd. Discus 33 is a 10.1-meter masthead sloop designed by Laurent Giles and built by Westerly Yachts Ltd. from 1979 to 1984, offered with either a fin or twin keel. It is an aft-cockpit variant of the Westerly 33. Aboard *Sea Dream of Clyde*, the Discus 33 has completed extensive offshore and coastal passages, including a 3,200-mile crossing from Mexico to Hawaii and subsequent voyages to Alaska and through the Inside Passage.0:02 Crews frequently manage variable conditions, from gale-force northerlies in the Gulf of California, which can force a change of plans, to light-air doldrums requiring engine use.16:32 The boat's Hydrovane self-steering system is used for long transits.8:05 Maintenance observed includes replacing a corroded seacock valve in the water, reinforcing chafed sails, and addressing a leaking raw water pump.6:20 Crews provision for extended voyages, supplementing water reserves and monitoring weather windows with Navionics.14:54 The Discus 33 has navigated challenging areas such as the reef-strewn San Juanico anchorage and the shallow, poorly charted entrance to Berg Bay in Glacier Bay National Park, where a cruising guide sketch proved essential.2:53

The living fleet

Sailed by the fleet

The channels sailing this model, and where they were last seen.

Seen 14 times across one channel of the fleet.

Basemap © Wikimedia Commons · CC BY-SA 4.0

On the water

The Westerly Yachts Ltd. Discus 33 on video

Sailing Into The Wilds Of Alaska - Starting The Inside Passage With A BANG! - Ep. 108Berg Bay's 27-foot minimum depth at high tide demands careful timing and a cruising guide sketch to enter safely.Sailing Sea Dream of Clyde24 Days Across The Pacific: From Tropics to GlaciersA 33-ft sailboat completes a 2,700-mile, 24-day Hawaii-to-Alaska passage through lightning, near-gale headwinds, and fog.Sailing Sea Dream of ClydeThis Is What Sailing Hawaii Actually Looks Like | Hilo to HonoluluCruising Hawaii involves navigating strict anchoring regulations, limited transient moorage, and challenging, swell-prone coastal approaches.Sailing Sea Dream of ClydeSailing 3,000 Miles Across the Pacific on a 33ft SailboatA 33-ft sailboat completes a 3,000-mile Pacific crossing from Mexico to Hawaii in 22 days.Sailing Sea Dream of ClydeFinal Offshore Preparations | We're Ready To Sail To Hawaii! - Ep 104A crew prepares their 33-foot sailboat for a 3,000-mile Pacific crossing by finalizing repairs and provisioning.Sailing Sea Dream of ClydeIN WATER Seacock Valve Replacement (No Haul-Out Needed!)Trevor replaces a broken seacock in La Paz using a bung, Rector Seal No. 5, and a spare valve from a neighbor.Sailing Sea Dream of ClydeOur 8000 mile Journey Begins! | Leaving Baja Behind - Ep. 103A 230-mile passage from San Carlos to La Paz takes five days due to light, inconsistent winds.Sailing Sea Dream of ClydeTrekking & Sleeping At Everest Base Camp | A Journey to the Top of the World - Ep.102Trevor and Kat of *Sea Dream of Clyde* trek to Mount Everest Base Camp at 17,500 feet elevation.Sailing Sea Dream of ClydeTrekking The Langtang Valley - Nepal 🇳🇵- Ep. 101Trevor and Kat trek the Langtang Valley in Nepal, reaching Kyanjin Gompa at 12,700 feet elevation.Sailing Sea Dream of ClydeLeaving Baja Behind: 200-Mile Sailing Journey & New Horizons - Ep. 100A Westerly Yachts Ltd. Discus 33 navigates Baja coastal passages and a 78-mile Gulf of California crossing.Sailing Sea Dream of ClydeSailing A 33 ft Boat in Mexico | Saying Goodbye To Baja - Ep. 99The crew of *Sea Dream of Clyde* navigates Baja California Sur while managing maintenance and unreliable depth charts.Sailing Sea Dream of ClydeRun For Cover! | Small Boat Realities In Baja - Ep. 98The crew of Sea Dream of Clyde retreats to Isla Coronados to avoid gale-force winds in Baja.Sailing Sea Dream of Clyde

What broke, what changed

Gear aboard, as the crews told it

Moments from individual boats of this model that the fleet has filmed — one crew, one piece of kit, one day on the water. Not a review of the class, and not a count of anything.

Each line is one crew's account of their own boat. Another Westerly Yachts Ltd. Discus 33 may be fitted out entirely differently.

The record

Full specifications

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

Dimensions
Weights
Ballast / displacement
40.0%
Rig & sail area
Rig
Masthead Sloop
Ratios
SA / displacement
13.8
Displacement / length
291.8
Comfort ratio
31.4
Capsize screening
1.81
Hull speed
7.2 kn
Pounds / inch immersion
1136
Hull
Hull type
Fin w/rudder on partial skeg
Construction
Fiberglass
Ballast type
Cast Iron
Production
Years built
1979–1984
Units built
300
Designer
Laurent Giles, Jack Laurent Giles
Builder
Westerly Yachts Ltd

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.

Pacific Seacraft 3410.39 mSame hull family0.3 m longerA William Crealock-designed cutter featuring a skeg-mounted rudder and an optional shallow-draft keel for versatile cruising
Victoria Marine 3410.44 mSame hull family0.3 m longerA versatile cruiser available as a masthead sloop or cutter, featuring a shallow 1.47m draft and a skeg-hung rudder
Seidelmann Yachts 3410.36 mSame hull family0.2 m longerA 1981 masthead sloop with a 45% ballast ratio, balancing a light-displacement hull with a deep 1.65-meter fin keel
Hunter Marine 339.96 mSame hull family0.2 m shorterA 1977 masthead sloop with a 38% ballast ratio, designed for stability and coastal performance
Bavaria Yachts Cruiser 339.99 mSame hull family0.2 m shorterOriginally introduced as the Cruiser 32, this 9.99-metre fractional sloop offers a 1.95-metre draft for coastal sailing
Cal Boats 3410.13 mSame hull familyNear-identical lengthA masthead sloop with a fin keel and spade rudder, favored by Jensen Marine founder Jack Jensen for personal cruising

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.

Keep asking

The fleet has more to say

Search what's been said about the Westerly Yachts Ltd. Discus 33, or ask a specific question — the answer comes back written out, with links to the moments it draws on.

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