Westerly 31 (Renown & Pentland)

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Design No. 0635

Built for: Various owners
Builder: Westerly Marine Construction Ltd,. Waterlooville, England
Date designed: 1972

Class – Hull Number  Westerly 31 – No. 150

Principal Design Data

L.O.A: 31’  0”  (9.54 m)
Datum: 24’ 0”  (7.30 m)
Beam Max: 9’ 6″   (2.98 m)
Draft: 4′ 6”   (1.46 m)
Displacement tons: 4.19
T.M.: 8.75 tons
Ballast ratio: 45.5%
Sail Area: 383 sq. ft         (400 sq. ft)
Rig: Bermudan sloop      (Bermudan ketch)

Less than a year after the introduction of Longbow, the archetype Westerly 31, there appeared for the first time at the London Earls Court boat show the ketch centre cockpit Renown. To be followed with aft cockpit Pentland in 1973 when demand for bilge keel versions increased.

In total two hundred and forty-one Pentlands were built and  two hundred and seventy-three Renowns.

Drawings are now available for construction of a 1:25 scale model of the westerly 31 range

If you currently own a Westerly 31 please do contact us


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 Renown, 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

13 page A4 format colour booklet containing many small scale drawings and photographs as well as technical data and an abridged specifications of the Westerly 31 class and all of the options of rigs, keel arrangements and cockpit layouts.

Model Plans

D:Blue Laurent Giles Naval Architects (NZ) LtdProjects�600-06

Full set of Stock Building Plans


A replica of the Westerly Renown can be constructed from the original 1972 drawings, or if preferred using strip plank construction for which full lofting, construction, rigging and outfit drawings will be provided.

Poster & Art Prints