Westerly 36

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Design No. 0629

Built for: Various owners
Builder:   Westerly Marine Construction Ltd,. Waterlooville, England
Date designed: 1971

Class – Hull Number  Westerly 36 – No. 1

Principal Design Data

L.O.A:  35’ 9”  (10.89 m)
Datum: 30’ 6”  ( 9.30 m)
Beam Max: 11’ 2″ ( 3.40 m)
Draft: 6′ 0” ( 1.83 m)
Displacement tons: 7.20
T.M.: 14.54 tons
Ballast ratio: 40.4%
Sail Area: 553 sq. ft
Rig: Bermudan sloop          (Bermudan ketch)

The Westerly 36 was formulated as a result of much consultation and debate between the Partners and Westerly Marine. The concept was for a yacht that although should be more modern in appearance than the earlier yachts, should have better performance, point higher and carry a more contemporary sheer line. The hull was tank tested at The Woolfson Unit of Southampton Technical College and gone is the signature Giles knuckle in the forward hull. Originally the hull lines were quite pinched aft in an attempt to ease the flow around the rudder but mainly to explore loopholes in the I.O.R. handicap rule, after two or three trials in the tank a ‘bustle’ was added – a feature which would migrate to many I.O.R racing yachts in the months and years to follow.


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Additional Information

Individual Drawing Copies

Please download and print the drawings list for the Westerly 36. 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

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 36 class. The Notes include all derivations of the Conway, Solway, Galway and Medway models.

Model Plans

G:Silver Laurent Giles Naval Architects (NZ) Ltd BackupProject

Full set of Stock Building Plans

6295 Sail Plan Ketch low res

A replica of the Westerly 36 can be constructed from the original 1971 drawings, or if preferred using strip plank construction for which full construction, rigging and outfit drawings will be provided.

Poster & Art Prints