Cheverton Cavalier 30 — Information, Review, Specs

David Cheverton·1966 – 1968·~6 hulls·Wing on Shing
Cheverton Cavalier 30 drawingBuilder drawing
Hull type
Monohull · full
Rig
Masthead Sloop
LOA
30.5' · 9.3 m
Displ.
10,976 lbs · 4,979 kg
First year
1966

The Cheverton Cavalier 30 is a quintessential representative of the mid20thcentury British yachting tradition, hailing from the design board of David Cheverton in Cowes, Isle of Wight. Introduced in the early 1960s, a pivotal era when the industry was transitioning from traditional timber construction to glassreinforced plastic (GRP), the Cavalier 30 was produced in both formats. The model reflects the seaworthy, "heavyweather" philosophy common to the Solentbased designers of that period, characterized by a long keel, a deep forefoot, and a narrow beam relative to modern standards. As noted in historical retrospectives by Classic Boat Magazine, David Cheverton’s designs are lauded for their robust scantlings and balanced lines, making them popular choices for North Sea and English Channel cruising.

Measurements

Dimensions 01

LOA
30.5 ft
LWL
22.5 ft
Beam
9.17 ft
Draft
4.6 ft
Max headroom
-
Air draft
-

Construction & hull 02

Construction
Wood
Hull type
Monohull
Keel type
Full
Rudder
1× Attached
Ballast
4368 lbs (Lead)
Displacement
10976 lbs
Water
-
Fuel
-

Rig & sails 03

Rig type
Masthead Sloop
P · main luff
-
E · main foot
-
I · fore ht.
-
J · fore base
-
Forestay (est)
-
Sail area
430 sqft

Calculations 04

SA/D ratio
13.93
Ballast/Disp.
39.8
D/L ratio
430.18
Comfort ratio
35.59
Capsize screening
1.65
Hull speed
6.36 kn

Sailing Performance & Handling

The Cavalier 30 is designed for stability and directional tracking rather than raw speed or light-air agility. Its long keel and substantial displacement—typical for a 30-foot cruiser of its era—give it a motion through the water that is predictable and comfortable in a seaway. Owners often describe the boat as "sailing on rails" when close-hauled, a byproduct of the deep keel’s lateral resistance and the hull's inherent balance.

With a relatively conservative Sail Area to Displacement (SA/Disp) ratio, the Cavalier 30 requires a stiff breeze to truly wake up. It is not a boat that will plane or surf; instead, it displaces water with a steady, momentum-driven gait. The transom-hung or skeg-mounted rudder (depending on the specific build year and material) provides firm feedback, though it can become heavy if the boat is over-canvassed. In heavy weather, the Cavalier 30 excels, maintaining its course with minimal helm correction compared to modern, flat-bottomed fin-keelers.

Interior Comfort & Variations

The interior of the Cavalier 30 is a study in traditional maritime ergonomics, typically finished in rich mahogany or teak. Because the boat was built during a transition period, timber-hulled versions often feature bespoke cabinetry that varies from boat to boat, while GRP versions follow a more standardized layout. The typical configuration includes a V-berth forward, a compact heads compartment, and a main saloon with two settee berths, one of which often converts into a double.

Headroom is generally adequate for the era, hovering around six feet in the main cabin, though it tapers forward. The galley is usually located aft to minimize motion for the cook, featuring a gimbaled stove and a deep sink. Storage is a high point of the design, with deep lockers behind the settees and under the berths, reflecting the boat's intended purpose as a serious coastal cruiser.

The Cavalier 30 is part of a wider family of "C-named" siblings from Cheverton. These include the smaller Campaigner (28 feet), the more diminutive Caravel, and the larger, more commodious Crusader (32 feet). While the Cavalier shares the same aesthetic DNA as the Crusader, it offers a more manageable size for single-handed or couple-based cruising while retaining the same heavy-scantling build quality.

While the Cavalier 30 does not have the "film star" status of some larger offshore racers, it is a staple of the classic boat circuit in the United Kingdom. David Cheverton’s influence in the Isle of Wight boat-building community is well-documented, and his vessels frequently appear in editorial features regarding the history of Cowes maritime craftsmanship. The model is often cited in British yachting archives as a benchmark for the "modern classic" cruiser of the 1960s.

Known Issues & Buyer’s Checklist

Prospective buyers must differentiate between the timber and GRP versions, as each carries a unique set of maintenance priorities.

  1. Fastener Degradation (Timber Hulls): For mahogany-on-oak versions, the condition of the copper nails and roves, or yellow metal screws, is paramount. "Nail sickness" or wood rot near the garboards and stem is a common concern for vessels of this age.
  2. Osmosis (Early GRP Hulls): The GRP variants were built during the infancy of fiberglass production. These hulls are often very thick (over-engineered by modern standards) but can be prone to osmotic blistering if they have not been epoxy-treated.
  3. Chainplate Leakage: On both versions, the chainplates that penetrate the deck can develop leaks over decades, potentially leading to core rot in the deck or rot in the supporting bulkheads.
  4. Engine Alignment: Many Cavalier 30s have been repowered. It is essential to check the engine beds and shaft alignment, as the original narrow hull sections can make modern engine fits tight, leading to vibration or cooling issues.

Community & Resources

Technical support for the Cavalier 30 is generally found through broader classic boat organizations rather than a dedicated model-specific association. The Classic Boat Association and the Old Gaffers Association (for those with older rigs) often serve as repositories for technical knowledge regarding Cheverton designs. Additionally, the maritime archives in Cowes provide historical context for owners looking to restore their vessels to original specifications.

The Verdict

The Cheverton Cavalier 30 is a "sailor’s boat" for those who value tradition, seaworthiness, and aesthetic grace over interior volume and light-air performance.

Pros:

  • Exceptional heavy-weather stability and tracking.
  • Timeless, classic lines that stand out in a sea of modern production boats.
  • Robust construction suitable for serious coastal or offshore cruising.
  • High-quality traditional joinery in the interior.

Cons:

  • Requires significant wind to perform optimally due to high displacement.
  • Maintenance intensive, especially for timber-hulled variants.
  • Limited interior volume and beam compared to modern 30-footers.
  • Narrow side decks and traditional layouts can feel cramped for large crews.

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