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Sibbick 20 ft Half Rater 1897 design 2011



Sibbick 20 ft Half Rater 1897 design 2011

Designer Charles Sibbick
Builder Martin Nott / BBA Lyme Regis
Date 2011
Length overall 20 ft 10 in / 6.35 m
Length deck 20 ft 10 in / 6.35 m
Length waterline 13 ft 5 in / 4.1 m
Beam 4 ft 11 in / 1.5 m
Draft 3 ft 3 in / 1 m
Displacement 0.41 Tonnes
Construction Cedar strip planking
Location United Kingdom
Price GBP 24,000

These details are provisional and may be amended



A fin and bulb keel “skimming dish” half rater with lug rig, DIAMOND is the recreation of a Victorian Half Rater – the original; designed and built by Charles Sibbick of Cowes in 1897. Sibbick Raters became World famous; cleverly designed and exquisitely built. Racing in these classes suggested wealth and extravagance to such an extent their design contributed to the abolition of the very rule under which they were built.

Built by Martin Nott, Alistair Munro and the students and staff of the Boat Building Academy, Lyme Regis, September 2010 to June 2011, she is a lovely example with fittings to evoke her origins such as a penny from 1897 (the year of the original Diamond) fixed in the mast step and the bulb containing some original lead from the yacht WITCH; she having been built by Sibbick’s own men. The original Diamond was exhibited at the Imperial Institute, Kensington; sold to the Mediterranean, then to Russia.


Construction and finish

- Hull in red cedar strip plank with glass epoxy sheathing
- External West System epoxy with one layer 350 gsm biaxial glass cloth overall and second layer below waterline
- Internal one layer 350 gsm biaxial glass cloth by vacuum resin infusion using West System ProSet
- Sapele framework including stem, apron, hog, beam shelf, king plank and hanging knees
- Red cedar deck beams
- Robbins Elite marine ply deck with yellow cedar planking and Saba caulking
- Mahogany covering boards and coamings
- Fin keel and rudder laser cut 316 stainless steel by C&O Engineering, Newton Abbot
- Ballast keel is lead encapsulated in an epoxy glass bulb bolted to the keel
- Custom made rudder tube in epoxy glass with Delrin bearings and O-rings
- Buoyancy tanks fore and aft
- Painted in Epifanes 2-pack Arctic White with gold leaf cove line and scroll, green boot top and black Hempel Fast Racing antifouling


Rig, spars and sails

- Mast, boom and yard in high grade Sitka spruce supplied by Stones Boatyard, Salcombe
- Classic cut sails Contender light cream 6.4 oz cloth, hand stitched leather; Elvstrom Sails


Deck equipment

- Tiller specially cast in bronze by Maritime Enterprises, Isle of Wight
- All other bronze fittings specially fabricated or supplied by Classic Marine
- Blocks and deck fittings by Davey & Co


These particulars have been prepared from information provided by the vendors and are intended as a general guide. The purchaser should confirm details of concern to them by survey or engineers inspection. The purchaser should also ensure that the purchase contract properly reflects their concerns and specifies details on which they wish to rely.


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