The Elizabethan 31 Ketch represents a transitional milestone in British yacht design, blending the seaworthy, traditional lines of the late 1960s with the then-emerging reliability of fiberglass construction. Designed by David Thomas and built by Peter Webster Ltd. in Lymington, the 31-foot hull was a more substantial successor to the Holman-designed Elizabethan 29. While many Elizabethan 31s were rigged as sloops or cutters, the ketch variant remains a distinct choice for long-distance cruisers who prioritize sail-handling flexibility and balanced performance over raw windward speed. With its signature semi-flush deck and robust displacement, the vessel serves as a quintessential example of the "over-built" era of GRP manufacturing.
Elizabethan 31 Ketch Information, Review, Specs

- Make
- Elizabethan
- Model
- 31 Ketch
- Builder
- Peter Webster Ltd.
- Designer
- David Thomas
- Number Built
- 40
- Production Year(s)
- 1968 - 1976
Sailing Performance & Handling
The Elizabethan 31 Ketch is defined by its sea-kindly motion and steady tracking, characteristics inherent to its long keel and moderate displacement. In an era where modern hulls often bounce over chop, the 31 slices through, remaining remarkably dry thanks to its high-volume bow and the protection offered by its semi-flush deck design. The ketch rig, while adding complexity in the form of extra standing rigging, provides a significant advantage in heavy weather. Owners often cite the "jib and jigger" configuration—sailing under just the headsail and mizzen—as an exceptionally stable way to handle sudden squalls while maintaining steering authority.
The boat is not a light-airs flyer; the drag of the long keel and the divided sail plan mean it requires a force 3 or 4 breeze to truly find its stride. However, once established on a reach, the Elizabethan 31 is a powerhouse. David Thomas, who would later design the legendary Sigma range, infused this hull with enough refinement to ensure it remains well-behaved when pressed. According to historical technical notes from the Elizabethan Owners Association, the boat exhibits a high degree of directional stability, allowing the helmsman to leave the tiller for short periods even without an autopilot, a trait highly valued by solo sailors and coastal passage-makers.
Interior Comfort & Variations
Because of its semi-flush deck, the Elizabethan 31 offers a unique interior volume that differs significantly from its contemporaries with traditional coachroofs. While this design choice results in a sleeker external profile and a safer working platform on deck, it creates a "deep" cabin feel. The headroom is surprisingly generous for a boat of this vintage, typically hovering around six feet in the main saloon. The layout is traditional: a V-berth in the forepeak, a heads compartment separating the mast area from the main cabin, and a saloon featuring a dinette that converts into a double berth, complemented by a pilot berth or storage lockers.
The Elizabethan 31 was produced in several variations. The most common is the sloop-rigged version, which often appeals to racers of the era, but the ketch variant discussed here was specifically marketed toward the "serious cruiser." There was also a "Mark II" iteration of the 31 hull which saw minor refinements in interior joinery and ballast distribution. The use of teak and mahogany in the interior was standard, and because these boats were built by Peter Webster’s skilled craftsmen in Lymington, the cabinetry often survives in better condition than that of more mass-produced rivals of the same age.
Known Issues & Buyer’s Checklist
Prospective buyers should approach the Elizabethan 31 with the understanding that these vessels are now over 50 years old. While the hulls are thick, solid GRP, several model-specific areas require scrutiny:
- Chainplate Attachments: On ketch-rigged models, the mizzen chainplates and the main mast's shrouds should be inspected for saltwater ingress into the deck core. While the deck is mostly solid GRP, some areas may have balsa or plywood reinforcement that can delaminate if neglected.
- Rudder and Skeg: The Elizabethan 31 features a protected rudder, but the bronze or stainless steel pintles can wear over decades. Any significant "play" in the tiller usually indicates worn bushings or a thinning skeg-to-hull joint.
- Engine Access: Like many yachts of this era, the engine (originally often a Bukh or Yanmar) is tucked away behind the companionway steps. Buyers should check for "mechanic’s neglect" in hard-to-reach areas like the stern gland and the rear engine mounts.
- Osmosis: While Peter Webster boats are not notoriously prone to "osmotic blistering" due to the high-quality resins used in Lymington, any hull of this age should be checked for moisture levels, especially if the gelcoat is original.
Community & Resources
The primary repository of knowledge for this vessel is the Elizabethan Owners Association, which maintains an extensive archive of original brochures, tuning guides, and a registry of surviving hulls. The association is particularly active in the UK, often organizing rallies on the South Coast where the Elizabethan fleet was originally born. Their technical forums are the definitive source for cross-referencing rig tensions and modernizing the original DC electrical systems found on the 31.
The Verdict
The Elizabethan 31 Ketch is a "sailor's boat"—a sturdy, aesthetically pleasing cruiser that prioritizes safety and comfort over modern interior volume. It remains an excellent choice for those looking to cross oceans or navigate challenging coastal waters on a modest budget.
Pros:
- Exceptional seaworthiness and a dry, stable ride in heavy weather.
- The ketch rig offers versatile sail plan options for short-handed crews.
- High-quality GRP construction from a respected British yard.
- Timeless, classic lines that stand out in a sea of modern "caravan" designs.
Cons:
- Sub-optimal performance in light winds compared to modern fin-keelers.
- The semi-flush deck can make the interior feel somewhat dark or "enclosed."
- Maintenance requirements of a twin-mast rig (double the standing rigging costs).
- Limited availability on the brokerage market compared to the sloop variant.
Measurements
Construction & Hull
- Construction Material
- Fiberglass
- Hull Type
- Monohull Sailboat
- Keel Type
- Full
- Rudder
- 1x Attached
- Ballast
- 5600 lbs
- Displacement
- 11200 lbs
- Water Capacity
- 40 gal
- Fuel Capacity
- 50 gal
Dimensions
- Length Overall (LOA)
- 31 ft
- Waterline Length (LWL)
- 24.17 ft
- Beam
- 9.33 ft
- Draft
- 4.67 ft
- Max Headroom
- -
- Air Draft
- -
Rig & Sails
- Rig Type
- Ketch
- P (Main Luff)
- -
- E (Main Foot)
- -
- I (Foretriangle Height)
- -
- J (Foretriangle Base)
- -
- Forestay Length (est)
- -
- Sail Area
- -
Calculations
- Sail Area / Displacement (SA/D) Ratio
- —
- Ballast / Displacement Ratio
- 50
- Displacement / Length Ratio (D/L) Ratio
- 354.11
- Comfort Ratio
- 33.71
- Capsize Screening Formula
- 1.67
- Hull Speed
- 6.59 kn