Giant Killer & the Westerly GK 29

Buy Now


Design No. 0738

Built for: Various owners
Builder: Westerly Marine Construction Ltd, Waterlooville, England
Date designed: 1977

Class – Hull Number          GK 29 – No. 1

Principal Design Data

L.O.A:                                    29’ 3¾”            ( 8.93 m)
Datum:                                  24’ 0”              ( 7.32 m)
Beam Max:                           10’ 4½”            ( 3.16 m)
Draft:                                       5’ 9”              ( 1.60 m)
Displacement tons:                        3.56
T.M.:                                       10.60 tons
Ballast ratio:                                    37.6%
Sail Area:                              402 sq. ft
Rig:                                         Masthead sloop (also fractional sloop option on GK 29’s)

Late in May in  the year of Her Majesty Queen Elizabeth II’s silver jubilee and the R.O.R.C’s Cervantes Trophy race started off of the Lymington Spit Buoy.

Among the fleet were two Laurent Giles designs: Starlight Return and Giant Killer both of which had been designed by Mike Pocock who for a couple of seasons led the Laurent Giles racing yacht design team to produce a handful of competitive custom and production quarter ton and half ton yachts.

At 29’ overall Giant Killer was a natural addition to the Westerly/Giles range of cruiser racers of which the smaller GK 24 Quarter Ton was their opening shot. The 29’ hull was built in wood – mahogany over longitudinal framing system and plywood bulkheads and web frames. Built in record time  her deck and deck works were fashioned from the smaller GK24 coachroof and cockpit moulding which was fasted down tightly to the double skin plywood ring deck.

In her first season she won the Cervantes trophy, was second in the Deauville and Guingaund Bowl races, and fourth overall in the R.O.R.C Championships.

In an impressive fleet Giant Killer did what it said on the tin and with these racing successes under her keel Westerlys committed to a production run which saw one hundred and eight-two yachts built, but popularity waned after the introduction of the Konsort two years later.


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.

If you want to make your purchase by using PayPal account or credit card, please choose 'PayPal' at the 'Check out'.
We can also take payment by Bank transfer, for further information, please contact us.

Contact Us

Additional Information

Individual Drawing Copies

Please download and print the drawings list for the Giant Killer and the GK29, 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

The 12 page A4 format colour booklet for Giant Killer and the GK 29 class contains many small scale drawings and photographs as well as technical data and an abridged specifications.

Model Plans

Full set of Stock Building Plans

A replica of Giant Killer the wooden GK 29 prototype can be constructed using cold moulded mahogany planking from the original 1977 drawings, which full construction, rigging and outfit drawings will be provided. All of the options of the GK 29 rigs, interior arrangement and keels are offered

Poster & Art Prints