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Sailboat Specifications

Westerly 33

Masthead Sloop · Fin W/Rudder On Partial Skeg

Designed by Laurent Giles · Built by Westerly Yachts Ltd. · First built 1977

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LOA 33.27 ft  ·  Beam 11.16 ft  ·  Displacement 14,341.00 lb  ·  Sail Area 526.14 ft²  ·  Masthead Sloop  ·  Fin W/Rudder On Partial Skeg
About the Westerly 33 Sailboat

A stalwart of British cruising since the 1970s, the Westerly 33 carries the trusted reputation that Westerly Marine Construction built over decades of producing practical, seaworthy sailboats for the everyday sailor. Designed with the bluewater family cruiser in mind, this vessel reflects Westerly's philosophy of combining robust construction with comfortable liveaboard accommodation, making it well suited to coastal passages and extended offshore voyaging alike. Like many boats from the Westerly stable, the 33 benefits from a solid GRP hull that has proven its durability through decades of use in the challenging conditions of the North Sea and English Channel. The layout below deck typically prioritises practical cruising comfort, offering sensible berth arrangements and workable galley space for extended passages with a small crew or family aboard. For those researching a used bluewater cruiser, the Westerly 33 represents an accessible entry point into serious offshore sailing. The marque enjoys strong community support, with active owner associations providing a wealth of accumulated knowledge — a reassuring advantage when considering an older vessel. A well-maintained example can still deliver confident, capable cruising today.

Dimensions & Specifications
LOA (Length Overall) 33.27 ft / 10.14 m
LWL (Waterline Length) 28.48 ft / 8.68 m
Beam 11.16 ft / 3.40 m
Max Draft 5.45 ft / 1.66 m
Displacement 14,341.00 lb / 6,505 kg
Ballast 6,047.00 lb / 2,743 kg
Sail Area (Reported) 526.14 ft² / 48.88 m²
Design & Construction
Hull Type Fin w/rudder on partial skeg
Rigging Type Masthead Sloop
Construction FG
Designer Laurent Giles
Builder Westerly Yachts Ltd.
First Built 1977
Last Built 1985
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Frequently Asked Questions

What is the Westerly 33's sail area to displacement ratio?

The Westerly 33 has a Sail Area to Displacement ratio (SA/D) of 14.31. Values between 14–18 are typical cruising sailboats; 18–22 is cruiser/racer; over 22 is performance racing.

What is the Westerly 33's comfort ratio?

The Westerly 33 has a Ted Brewer Comfort Ratio of 29.81. A ratio over 30 indicates good offshore comfort; over 40 is very comfortable offshore.

Is the Westerly 33 safe for offshore sailing?

The Westerly 33 has a Capsize Screening Formula value of 1.84. Values under 2.0 are considered acceptable for offshore sailing; under 1.8 is ideal.

What is the hull speed of the Westerly 33?

The theoretical hull speed of the Westerly 33 is 7.15 knots, calculated from its waterline length.

How much does a Westerly 33 weigh?

The Westerly 33 has a displacement of 14,341.00 lb and a length overall (LOA) of 33.27 ft.

Who designed the Westerly 33?

The Westerly 33 was designed by Laurent Giles, first built in 1977.