Hull Design and Form
Anderson chose a notably generous beam of 3.1 metres for an 8.53-metre LOA hull, producing a length-to-beam ratio of 2.75 that sits wider than the great majority of comparable designs. The benefit is interior volume and initial stability; the trade-off is a capsize screening figure of 2.03 — marginally above the conventional 2.0 threshold used to assess offshore suitability — which positions the Countess 28 firmly as a coastal rather than ocean-going design. The hull is laid up in fibreglass, a material that requires only minimal maintenance during a typical sailing season and has proven durable over the decades since production began.
Rig and Sailing Behaviour
The Countess 28 is rigged as a masthead sloop, a configuration Anderson selected for its mechanical simplicity and the ability to carry a given sail area lower and with less heeling moment than a fractional arrangement. Theoretical hull speed tops out at around 6.6 knots, consistent with the waterline length, and the moderate displacement-to-length ratio of 251 places the design among what analysts describe as 'moderate racers' — not a slug, but not a thoroughbred either. Comfort at sea is rated at 22.0 on the Brewer comfort ratio scale, landing just above the coastal-cruiser threshold of 20.
Keel Configuration and Tidal Versatility
The defining practical feature of the Countess 28 is its bilge keel arrangement. Twin fixed keels allow the boat to sit upright when dried out on a tidal beach or hard standing, making the design particularly attractive for UK and Irish east-coast and west-coast cruising grounds where drying moorings are common. Draft is held to between 1.17 and 1.27 metres depending on load, meaning the boat can enter even shallow marinas without difficulty. Bilge keels carry a known hydrodynamic penalty versus a single fin keel of the same weight, but for sailors who value the freedom to take the ground without props and rudders, the tradeoff is considered worthwhile.
Accommodations and Internal Volume
The wide beam translates directly into usable interior space. A 76-litre fresh water tank and a 42-litre fuel tank are specified, dimensions that support extended coastal passages without shore facilities. The SailWiki record notes that the boat was sold complete by Colvic or finished by other yards, which means interior arrangements vary more than on production-only builds — prospective buyers should inspect accommodation fit-out carefully, as some examples were finished to a higher standard than others.
Known Limitations
The capsize screening value of 2.03 is the headline structural caution with the Countess 28. By the conventional rule of thumb, a figure above 2.0 disqualifies a boat from offshore passage racing, and while that metric has critics, it reflects the hull's wide, relatively shallow form. The immersion rate of approximately 859 lbs per inch means loading the boat heavily — cruising stores, ground tackle, extra crew — will increase draft meaningfully and may push the capsize figure marginally higher still. The masthead rig, while simple, requires standard maintenance attention to the running rig dimensions that the original yard recommended.
The Verdict
The Colvic Countess 28 is an honest, robust coastal cruiser designed with British tidal waters at the centre of its brief. Its twin keels, wide accommodations, and GRP durability make it a practical choice for sailors who dry out regularly and cruise in company. It was never conceived as a blue-water passage maker, and the numbers bear that out — but within its intended environment it remains a capable and low-maintenance boat.
Pros
- Bilge keel design permits drying out upright on any tidal foreshore
- Wide beam delivers above-average interior volume for the LOA
- Fibreglass construction keeps seasonal maintenance demands low
- Masthead rig is simple to maintain and tolerant of short-handed sailing
- Offered as a complete build or third-party finish, giving buyers options
Cons
- Capsize screening figure of 2.03 sits above the accepted offshore threshold
- Bilge keels carry a hydrodynamic efficiency penalty compared with a fin keel
- Interior fit-and-finish varies significantly between yards that completed hulls
- Comfort ratio of 22 places the boat at the lower edge of the coastal-cruiser band







