Westerly Discus & Westerly 33

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Design No. 0721

Built for:  Various owners
Builder:  Westerly Marine Construction Ltd, Waterlooville, England
Date designed: 1978

Class – Hull Number  Westerly 33 Class – No. 1

Principal Design Data

L.O.A: 33’ 3”  (10.13 m)
Datum: 27’ 6½”  ( 8.39 m)
Beam Max: 10’ 3″ ( 3.12 m)
Draft: 5′ 6”  ( 1.68 m)
Displacement tons: 6.74
T.M.: 12.61 tons
Ballast ratio: 42.9%
Sail Area: 472.5 sq. ft
Rig: Bermudan Sloop

The Westerly 33® yachts were designed to fall between the Westerly 31 and 36 models and was a very successful design, none the less it was replaced in 1980 with the lighter Westerly 33 Discus, also known as the ‘bridge deck 33’.

Westerly Marine had, during its association with Laurent Giles, established a reputation for its solid cruising yachts which were offered with various keel, rig and cockpit arrangements.

The aft cockpit sloop rigged Discus came with a three cabin layout and was to be the penultimate design collaboration from the two companies’ until after Westerly’s financial restructuring in 1985.

If you own a Discus or Westerly 33 we would be pleased to hear from you.

See also design number 0683 Westerly D33.


We are currently updating the online purchase facility. For those of you who would like to buy copies of the original historical drawings, plan for the construction of scale models, stock plan sets for full size construction, study notes or our brochure please contact us stating which design and items you require. We will do our best to help.

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Additional Information

Individual Drawing Copies

Please download and print the drawings list for the Westerly Discus, Individual plan copies cost $85.00 which includes standard airmail. Please contact us using the link for information on how to order.

Download Drawing List

Study Notes

Coming in Autumn 2017 - 11 page A4 format colour booklet containing many small scale drawings and photographs as well as technical data and an abridged specifications of the Westerly 33 and Discus class.

Model Plans

D:Blue Laurent Giles Naval Architects (NZ) LtdProjects�700-07 Westerly Discus & Westerly 33

Full set of Stock Building Plans

7219 Sail Plan low res

A replica of the Westerly Discus can be constructed from the original 1980 drawings, or if preferred using strip plank construction for which full construction, rigging and outfit drawings will be provided.

Poster & Art Prints

7218 Deck plan W33 centre cockpit westerly livery small file Westerly Discus & Westerly 33